Bullard EVAHL Series User manual

EVAHL Series-Hazardous Location User Manual
(for use with Loose-Fitting Headtops)
www.bullard.com
Cautions and Limitations
A. Not for use in atmospheres containing less than 19.5% oxygen.
B. Not for use in atmospheres immediately dangerous to life or health.
C. Do not exceed maximum use concentrations established by regulatory
standards.
F. Do not use respirator if airflow is less than six cfm (170 lpm).
H. Follow established cartridge and canister change schedules or observe ESLI
to ensure that cartridges and canisters are replaced before breakthrough.
I. Contains electrical parts that may cause ignition in flammable or explosive
atmospheres.
J. Failure to properly use and maintain this product could result in injury or
death.
L. Follow the manufacturer’s user instructions for changing cartridges and/or
filters.
M. All approved respirators shall be selected, fitted, used and maintained in
accordance with MSHA, OSHA and other applicable regulations.
N. Never substitute, modify, add or omit parts. Use only exact Bullard
replacement parts in the configuration as specified by the manufacturer.
O. Refer to User’s Instructions and/or maintenance manuals for information on
use and maintenance of these respirators.
P. NIOSH does not evaluate respirators for use as surgical masks.
* At very high work rates, the pressure in the respirator may become negative at
peak inhalation flow.
Use strictly in accordance with instructions, labels and limitations pertaining
to the EVAHL Series respirator.
1. The EVAHL Series respirator does not supply oxygen. Use only in adequately
ventilated areas containing at least 19.5% oxygen.
2. Do not use when concentrations of contaminants are immediately
dangerous to life or health (IDLH).
This term is defined in 29CFR 1910.134 (b).
3. Do not use these respirators for respiratory protection during abrasive
blasting or clean up.
4. Do not use in circumstances where the airborne concentration level of
contaminant exceeds maximum use concentration for this type of respirator
as established by regulatory standards.
5. Leave area immediately if:
• Breathing becomes difficult
• Dizziness or other distress occurs
• You taste or smell the contaminant
• Unit becomes damaged
• Battery alarm activates
• Low Flow alarm activates
6. This apparatus must not be worn with the blower unit switched off. If the
blower is switched off, a rapid build-up of carbon dioxide and depletion of
oxygen may occur, which could result in death or serious injury.
7. Never alter or modify this respirator. Use only Bullard EVAHL Series
components and replacement parts approved for use with this respirator.
8. This device is not immune to highly powered RFI/EMI emissions.
Failure to follow these warnings could result in death or serious injury.
WARNING
Warnings, Cautions and Limitations..................................................................... 1
Principle of Operation........................................................................................... 2
Battery Pack.......................................................................................................... 2
Pre-Operational Inspection .................................................................................. 3
Mounting the Breathing Tube................................................................................ 3
Checking Air Flow ................................................................................................. 4
Air-Purifying Elements .......................................................................................... 4
Mounting and Replacing Filter/Cartridges........................................................... 4
Donning the Blower ...........................................................................................5-7
Low Battery Alarm ................................................................................................ 8
Troubleshooting .................................................................................................... 8
NIOSH Approval Label .......................................................................................... 9
Cleaning and Storage.......................................................................................... 10
Warranty ............................................................................................................. 10
Ordering Information.......................................................................................... 11
EVAHL1 - Powered Air-Purifying Respirator
Powered Air-Purifying Respirator with High Efficiency (HE) Filters - Approval
No. TC-21C-0922 (PAPRFC3)
Powered Air-Purifying Respirator with OV-AG-HE Filter Cartridges for organic
vapors, chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen
fluoride and particulates – Approval No. TC-23C-2765 (PAPRFC4)
Powered Air-Purifying Respirator with AM-FM-MA-AG-HE Filter Cartridges for
ammonia, formaldehyde, methylamine, chlorine, hydrogen chloride, sulfur
dioxide, chlorine dioxide, hydrogen fluoride and particulates – Approval No.
TC-23C-3097 (PAPRFC5)
Table of Contents
US-NIOSH

www.bullard.com
2
Principle of Operation / Battery Pack
EVAHL Series - Principle of Operation
The EVAHL Series Powered Air-Purifying Respirator (PAPR) System is configured in
six parts:
1. The blower and belt assembly:
EVAHL1 Blower Unit
EVABELT1 or EVABELT2 Comfort Belt, Decon Belt
PA1AFI Air Flow Indicator
2. The battery pack (Part No. EVAHLBAT1). One fully charged pack will power the blower
for approximately 4 to 10 hours depending upon factors such as speed, cartridge
selected and cartridge loading.
3. The breathing tube, which is available in three different types and three lengths:
PAHBT Powered Air Hood Breathing Tube Assembly (standard length - 26")
PAHBTXS Powered Air Hood Breathing Tube Assembly (short length - 22")
PAHBTXL Powered Air Hood Breathing Tube Assembly (long length - 32")
PA1BT Hood breathing tube assembly with clamp (standard length - 26")
PA1BTXS Hood breathing tube assembly with clamp (short length - 22")
PA1BTXL Hood breathing tube assembly with clamp (long length - 32")
PA20LFBT Loose fitting facepiece breathing tube assembly (standard length - 32")
PA20LFBTXS Loose fitting facepiece breathing tube assembly (short length - 26")
PA20LFBTXL Loose fitting facepiece breathing tube assembly (long length - 38")
4. The High Efficiency Particulate Arrestance (HEPA) filter or chemical filter cartridge.
5. The hood with headband suspension (except for the RT Series) and/or hard hat, or
loose fitting facepiece.The following hood models may be used with the EVAHL Series
blower unit:
RT1, RT1T Hood with long inner and outer bib (NIOSH approved for use without a
headband suspension)
RT2, RT2T Hood with long inner and outer bib (NIOSH approved for use without a
headband suspension)
RT3, RT3T Hood with long inner and outer bib (NIOSH approved for use without a
headband suspension)
RT4, RT4T Hood with long inner and outer bib (NIOSH approved for use without a
headband suspension)
20TJN, 20TJNT Hood
20TICN, 20TICNT Hood with inner bib
20TICH, 20TICHT Hood for use with Bullard hard hat
20TICSN, 20TICSNT Hood with taped and sealed seams
20SICN, 20SICNT Hood with taped and sealed seams
20SICVN, 20SICVNT Hood with taped and sealed seams and PVC lens
20SICH, 20SICHT Hood with taped and sealed seams for use with Bullard hard hat
20SICVH, 20SICVHT Hood with taped and sealed seams and PVC lens for use with
Bullard hard hat
20LFM Loose fitting facepiece, medium size
20LFL Loose fitting facepiece, large size
20LFXL Loose fitting facepiece, extra large size
20LF2S Loose fitting facepiece (narrow profile), small size
20LF2M Loose fitting facepiece (narrow profile), medium size
20LF2L Loose fitting facepiece (narrow profile), large size
6. The Battery Charger:
EVAHLSMC Quick charger, single port
EVAHLGC Gang charger, six port
The blower unit draws in ambient air through the cartridges.The purified air is blown
into the wearer’s hood through the breathing tube. A flow indicator is provided to check
that there is an adequate volume of air available to the wearer prior to use.The system is
designed to operate at a minimum air flow of approximately 7 cubic feet of air per minute
(198 liters per minute) in the hood under normal use on the standard speed setting, and
8.5 cubic feet of air per minute (240 liters per minute) in the hood under normal use
on the high speed setting. A feedback loop from the Mass Flow Sensor to the impellor
continually monitors and adjusts the air flow to keep it constant at the design set point.
The units are designed for use at temperatures from 23ºF to 129ºF (-5ºC to 55ºC).
A high temperature alarm will sound at 122ºF (50ºC).
The battery pack mounts in a compartment on the back of the blower. A fully charged
battery pack will power the blower for approximately 4 to 10 hours depending upon
factors such as speed selected, cartridge selected, and filter/cartridge loading.
The EVAHL Series Blower is equipped with two alarms: A continuous alarm will sound when
the air flow falls below approximately 185 lpm and an intermittent chirp alarm will activate
to indicate that the battery has approximately 15 minutes of remaining capacity.
Battery Pack
One fully charged battery pack will power the blower for approximately 4 to 10 hours
depending upon factors such as speed selected, cartridge selected and filer/cartridge
loading.
WARNING: EXPLOSION HAZARD
• Only use Bullard battery part number: EVAHLBAT1. Substitution of any other
battery pack may impair suitability for Division 2.
• Do no charge battery packs in hazardous locations.
• Only charge using Bullard Desktop battery pack chargers.
• Do not insert or remove the battery pack unless the area is known to be free
of ignitable concentrations.
NOTE
The battery has built-in short circuit protection. In the event of a short circuit, an
internal polyfuse will trip. The fuse will reset itself within 5-10 seconds allowing the
battery to resume normal operation.
To charge the battery pack, do the following:
• Use a flat head tool to release the battery from the blower. (See Figure 1.)
• Place battery into the charging port of the battery charger. (See Figure 2.)
• Connect the battery charger to a 110-volt AC electrical outlet.
• Charge the battery pack for approximately 4 hours. While the battery is charging, the
light on the charger will remain red.The charger light will illuminate green when charging
is complete.
Figure 1 Figure 2

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Battery Pack / Pre-Operational Inspection
Battery Storage
Storage of Li Polymer batteries is relatively easy. Unlike Nickel batteries, they lose a very
small amount of power (less than 0.5% per day) and therefore can be charged and stored
ready for use. If long-term storage is required, it is best to store the battery in a cool
place not below -5ºC/23ºF with at least 40% charge still remaining.
NOTE
Discharging and re-charging the battery fully at least once every 3 months is
suggested to ensure the longest possible life of the battery. Do not leave on the
charger for more than 30 consecutive days.
To maximize battery life, these guidelines should
be followed:
• Remove the battery from the blower unit when not in use.
• Charge the battery before it is completely discharged. The low battery alarm indicates
that the battery needs to be charged. The battery is designed with a circuit to protect
the battery. It will not allow the battery to be discharged below a safe voltage for the
cells, regardless of airflow, without the alarm sounding. When the battery reaches the
voltage cutoff it will automatically cease operation.
• Always charge the batteries at room temperature or cooler. At higher temperatures,
the battery pack may not accept a full charge. If the battery pack feels hot, let it cool
for 30 minutes before charging.
• Do not charge battery packs in an enclosed cabinet without ventilation.
Battery Fuel Gauge:
EVAHL Battery Packs are equipped with an on-board fuel gauge to indicate the amount
of remaining capacity left in the battery pack. To check the remaining capacity, simply
depress the button labeled “Push” and LEDs
will illuminate indicating the level of battery
capacity remaining. When fully charged all
four LEDs will illuminate green, and when 25%
or less charge is available a single LED will
illuminate red.
Pre-Operational
Inspection
Prior to each work shift, perform the following Pre-Operational Inspection to ensure
proper operation and to ensure that the unit is completely assembled.
1. Belt Mounted Blower Unit, Part No. EVAHL1
• Check that the unit is clean and undamaged.
• Inspect for deterioration, physical damage and improper assembly.
2. Filter/Cartridges
• Inspect the filter/cartridge for any physical damage
• Check the label to ensure the filter/cartridge has not exceeded its
“use-by” date.
• Inspect the gasket on the filter for any phsyical damage.
NOTE
Each filter comes with a permanent gasket.
• Ensure that the correct filter/cartridge is appropriate for the contaminant.
• Consult the NIOSH approval label and your own in-plant safety professional if you
have any questions as to the suitability and efficiency of the Air-Purifying Element.
• Screw the cartridge into the port until hand-tight and the locking tab is secure. (Refer
to Mounting and Replacing Filters on Blower Unit on page 4)
3. Battery Pack
• Check that the battery is not damaged.
• Check the Fuel Gauge to determine sufficient charge is available.
• Place the battery pack in the battery compartment on the blower.
• Use flat head tool to secure the battery. (See Figure 4)
4. Hood with Suspension or Hard Hat, or Loose Fitting Facepiece
• Depending on the model of the hood selected, it may be used with either a headband
suspension or a hard hat (Note: RT Series hoods are part of NIOSH approved
respirator assemblies when used without a headband suspension or a hard hat).
• The loose fitting facepiece is constructed of Tychem 2000 (QC) and features an
internal suspension.
• Inspect the hood or loose fitting facepiece for any
physical damage.
Connecting the Breathing Tube to
the Blower
• Ensure that a rubber gasket is in place in the breathing
tube coupler on the blower unit.
• Screw one end of breathing tube into the blower unit.
(Hand tight is sufficient.) (See Figure 5).
• Ensure that neither the breathing tube nor the filter is
blocked.
Turning on Blower Unit
• Switch on the blower by pressing the ON/OFF button for 1-2 seconds confirmed by a
short beep.
• If the Low Battery Alarm sounds at this time, the battery needs to be recharged. See
instructions on page 2 regarding properly charging
the battery.
• If the Low Flow Alarm sounds at this time, the hood,
breathing tube and filter should be checked for
leakage.
Figure 3
Figure 5
Figure 4
Lock the battery release before placing the blower in service. The blower shall
not be used in a hazardous location with the release unlocked.
WARNING
EVAHL Series-Hazardous Location User Manual
(for use with Loose-Fitting Headtops)

www.bullard.com
4
Checking Airflow / Air-Purifying Elements
Checking Airflow with the Airflow Indicator
(PA1AFI)
With the blower switched ON and the filters/cartridges
mounted, take the free end of the breathing tube in one
hand, hold it upright and place the Airflow Indicator into
the end of the tube. (See Figure 6). Apply a light downward
pressure to the Airflow Indicator to get a reasonable seal
at the breathing tube end. Ensure that the air outlet holes
in the Airflow Indicator tube are not blocked.Two hands
may be used if preferred, one to hold the breathing tube
and one to hold the Airflow Indicator.The position of the
ball in the Airflow Indicator should be observed. If any part
of the ball is below the PASS LINE on the Airflow Indicator,
check for:
• Blower malfunction.
• Clogged or damaged Air-Purifying filter elements on
the HE filter. See “Mounting and Replacing Cartridges
on the Blower Unit” on page 4.
• Low battery or battery malfunction.
If the ball is completely above the PASS LINE on the Airflow Indicator, then the system is
ready for use.
�WARNING
If the blower malfunctions during use in a hazardous area:
Remain calm and LEAVE the hazardous area immediately.
DO NOT use a blower that fails the flow test (air flow indicator sold separately).
Use ONLY Bullard filter/cartridges which comply with and have the NIOSH
approval label and which are appropriate for the contaminant.
Failure to observe these warnings could result in death or serious injury.
EVAHL Series PAPR Air-Purifying Elements
Principle of Operation
The following filter/cartridge protection classification applies when used with any of
the hoods or loose fitting facepieces.
Protection Filter/Cartridge Type NIOSH / ANSI Color
Code for Cartridge Label
HE PAPRFC3 Magenta
OV/CL/HC/SD/
CD/HF/HE PAPRFC4 Olive and Magenta
AM/FM/MA/CL/
HC/SD/CD/HF/HE PAPRFC5 Olive and Magenta
HE particulate filters are 99.97% effective against all particulate aerosols. The
following abbreviations are approved by NIOSH to indicate the particulates, gases, or
vapors which are removed by the gas/vapor cartridges: HE High Efficiency Particulate;
OV Organic Vapor; AM Ammonia; CD Chlorine Dioxide; CL Chlorine; FM Formaldehyde;
HC Hydrogen Chloride; HF Hydrogen fluoride; MA Methylamine; SD Sulfur Dioxide
Mounting and Replacing Filters
on the Blower Unit
High efficiency particulate filters must be
replaced when retained particles clog the
filters and reduce air flow below acceptable
levels, as indicated by testing with the Air
Flow Indicator as described.
To Replace Filters
• Remove the air-purifying element from its packaging, and inspect for damage. If in
doubt do not use.
• Check that the air-purifying element has not exceeded its “use-by” date.
• Check that the filter connecting thread and gasket are in good condition.
• Check that the air-purifying element is appropriate to the hazard. If in doubt
consult your respirator program administrator or supervisor.
• Check that the threads in the blower unit port are in good condition and clear of
contaminant.
• Screw the air-purifying elements into the receptacles (see Figure 8) until the
cartridge is hand tight. DO NOT OVERTIGHTEN.
• Check to see that the locking tab is secure. (see Figure 9)
To Replace Combination Filter/Cartridge
• Follow the steps above, but beware that the filter locking tab is beneath the
filter rim. (see Figure 10)
Installing and Removing the Belt on the
Blower Unit
To install the belt
• With the blower filter side down, orient the lever locks as shown in Figure 11
• Lay belt over blower as shown in Figure 12
• Rotate level locks until they are oriented as shown in Figure 13
To Remove the Belt
• With the blower filter side down, orient the lever locks as shown in Figure 12
• Remove belt from blower
Figure 7
Figure 8 Figure 9 Figure 10
Locking
tab Locking
tab
Figure 11 Figure 12 Figure 13
Figure 6

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Donning the Blower / CC20 Series Hood Use
NOTE
Plastic insert may be removed for cleaning as shown in Figure 14-15.
Donning the Respirator
Initial Donning
Prepare to don the blower, battery and hood in a safe, hazard-free area and do the
following:
• Ensure that the filter/cartridges used are suitable for the contaminant in
question and are compatible with the EVAHL1 Blower Unit.
• Check that the filter/cartridge is properly mounted on the blower unit.
• Place the battery in the battery compartment on the back of the blower.
• Fit the blower and belt around the user’s waist and adjust the belt for a
comfortable fit.
• Remove the belt and blower to install the hood or loose fitting facepiece and
corresponding breathing tube.
Donning the CC20 Series Hood
Adjusting and Installing Headband Suspension
in Hood
NOTE
20LF and 20LF2 series loose-fitting facepiece hoods have a sewn-in
headband.
NOTE
The 20SICH, 20TICH and GRH Hoods may use a hard hat or suspension.
NOTE
RT Series hoods do not use a suspension.
1. Adjust headband before installing into
hood.
2. Turn ratchet until it is at its largest size.
3. Place suspension on head.
4. Adjust ratchet knob until snug and
comfortable fit achieved. (Figure 16)
5. Remove from head.
6. Place suspension into hood.
7. Snap 4 white buttons of suspension into 4 white buttons
on hood. (Figure 17)
Adjust Crown Straps for Vertical Fit
To improve suspension comfort, adjust crown
straps vertically by repositioning the crown
strap posts in the crown straps. Vertical
adjustment makes the headband ride higher or
lower on the wearer’s head. To adjust, push
crown strap post from slot, move to new slot,
and snap in to secure. Move key to desired
vertical position. Repeat for other crown strap
post (Figure 18).
NOTE
If the hood rises off your head during
use, first verify proper air pressure, then select a different hood for your
application, or use the optional chin strap.
Adjusting and Installing Hard Hat in Respirator
Hood (20SICH & 20TICH)
1. Assemble and adjust the standard Bullard hard hat suspensions RS4PC or
RS6PC or the optional ratchet suspensions RS4RC or RS6RC by following the
directions on instruction sheet attached to headband
on hard hat. Read all hard hat warning labels and
instructions. The following Bullard hard hat models
are approved for use with CC20 Series hoods as part
of a NIOSH approved respirator assembly: C30, C30R,
S51 and S51R.
2. If desired, install and adjust optional ES42 hard hat
chinstrap.
3. Before inserting hard hat into hood, remove the two
adhesive-backed Velcro®strips attached to the Velcro
piece that is sewn into the hood (see Figures 20 & 21).
4. Peel the backing off the longer Velcro tab and apply it
to the inside center rear of the hard hat, about 1/4”
up from the edge. Apply shorter Velcro tab to the underside of the brim of the
hard hat (see Figure 20).
5. Insert hard hat into respirator hood with cap visor facing front of hood (see
Figure 19).
6. Tuck cap brim on top of front elastic Velcro band sewn into hood (see Figure
20).
7. Loop the Velcro strip sewn inside the hood around the back of the cap and affix
it to the corresponding Velcro tab previously installed inside the hard hat in
step 4 (see Figure 21).
8. Remove protective plastic from plastic lens of respirator hood. If desired,
apply optional 20LCL adhesive-backed lens covers designed to protect the
respirator’s plastic lens. Apply 2-3 lenses at a time. When lens becomes soiled,
remove by pulling tab at edge of lens cover to clear your vision.
Figure 14 Figure 15 Figure 18
Crown strap
Crown
strap
post
Brow pad
Figure 19
Velcro strip
Window
Front
elastic
band
Figure 20
Velcro tabs
Velcro
Strip
Figure 21
Figure 17
Ratchet Knob
Figure 16
EVAHL Series-Hazardous Location User Manual
(for use with Loose-Fitting Headtops)

6
RT Series Hood Use
Installing Breathing Tube Assembly in CC20 Hoods
For hoods without a threaded
port at the rear, Breathing Tubes
PA1BT, PA1BTXS and PA1BTXL will
attach to the hood with a clamp
as follows:
1. Remove nylon clamp from
plastic anchor plate on hood
(see Figure 22).
2. Insert the open end of the
breathing tube approximately
five inches into hood’s air
entry sleeve (see Figure 23). Do not
insert breathing tube into hood air entry
sleeve more than 6 inches as it may
cause a flow restriction.
3. Install nylon clamp over air entry
sleeve and breathing tube, inserting
clamp locks through two holes in plastic
anchor plate that is sewn into hood.
Locks should face away from user’s
neck (see Figure 24). The air entry
sleeve seams should be on the top
and bottom of the breathing tube when
properly installed and worn.
4. Engage clamp locks and squeeze together
until tight. Air entry sleeve should not be
twisted or restricted (see Figure 25). If
so, then remove the clamp and repeat
steps 2-4.
For hoods with a threaded port at the rear
(designated with a “T” suffix), Breathing
Tubes PAHBT, PAHBTXS, PAHBTXL will attach
to the hood by the threading into the port at the rear (See Figure 23A).
Donning the CC20 and EVAHL
1. With PAPR Blower Unit Running, put on CC20 Series respirator hood.
2. Position headband suspension or hard hat for a comfortable fit.
3. If using an optional chin strap, pull elastic strap under your chin. Adjust for
a secure and comfortable fit.
4. Tuck inner bib of hood into shirt or protective clothing if using hood with
inner bib (see Figure 26).
5. Pull respirator outer bib over collar of shirt or protective clothing.
6. Ensure that the neck cuff is down below the chin and
that the air outlets of the cuff (see Figure 27) are
not restricted. If the
neck cuff is not
below the chin,
then pull down
before continuing
(See Figure 27).
RT Series Hood Use
Installing Breathing Tube
Assembly in RT Series
Respirator Hoods
For hoods without a threaded port at the rear,
Breathing Tubes PA1BT, PA1BTXS and PA1BTXL
will attach to the hood with a clamp as follows:
1. Remove nylon clamp from the breathing tube
(see Figure 23).
2. Insert the open end of the breathing tube
approximately five inches into hood’s air
entry sleeve (see Figure 29). Do not insert
breathing tube into hood air entry sleeve
more than 6 inches as it may cause a flow
restriction.
3. Install nylon clamp over air entry sleeve and
breathing tube. If desired, 2 or more clamps
may be used(see Figure 30). The air entry sleeve
seams should be on the sides of the breathing
tube when properly installed and worn.
4. Engage clamp locks and squeeze together until
tight. Air entry sleeve should not be twisted or
restricted (see Figure 31).
If so, then remove the
clamp and repeat steps 2-4.
5. With PAPR blower unit
running, put on RT Series
respirator hood. Pull the
hood over your head until
the neck cuff is securely
around your neck.
6. Ensure that the neck cuff
is down below the chin and
that the air outlets of the
cuff are not restricted. If
the neck cuff (see Figure
27) is not below the chin,
then pull down before continuing (See Figure 28).
Figure 23
Figure 24
Figure 22
To tighten
To remove
To tighten
WARNING
Do not put on or remove these respirators in a hazardous atmosphere. Failure to
heed these warnings could result in death or serious injury.
Figure 29
Figure 30
Figure 23A
Twisted – incorrect
Correct
Figure 25
Figure 26
Figure 28
Incorrect
Correct
Twisted – incorrect
Correct
Figure 31
Figure 27

WARNING
The user should ensure that the neck cuff is unrestricted all around the neck
to allow proper inflation and reduce restrictions.
Battery run time will be reduced by a restricted or improperly donned hood.
For hoods with a threaded port at the rear (designated with a “T” suffix),
Breathing Tubes PAHBT, PAHBTXS, PAHBTXL will attach to the hood by the
threading into the port at the rear (See Figure 24A).
NOTE
The RT3 and RT4 hoods have an adjustable velcro strap near the top of
the lens that allows the user to customize the curvature of the lens to
his/her personal preference. This strap may be removed if desired.
7. Make sure that the breathing tube is not twisted after donning.
8. Tuck inner bib of hood into shirt or protective clothing (see Figure 26).
9. Pull respirator outer bib over collar of shirt or protective clothing. Pull the long
outer bib down on the outside of clothing and secure with tie down straps or
tape (if employer operating procedures will allow.)
Loose-Fitting
Facepiece Use
Installing Breathing Tube
Assembly
in Loose-Fitting
Facepieces
1. The 20LFM, 20LFL, 20LFXL, 20LF2S,
20LF2M and 20LF2L loose-fitting facepieces have a sewn-in breathing tube
connector on the back. The PA20LFBT breathing tube has a special connector
on the hood end with bayonet type pins.
2. Insert the bayonet connector of the PA20LFBT breathing tube in the hood
connector and turn clockwise until it locks in place (see Figure 32).
Available in extra large 20LFXL, large 20LF2L or 20LFL, medium 20LF2M or 20LFM,
and small 20LF2S. Select the size that fits most comfortably and matches your head
size. Remove the protective cover from the visor. Pull the hood over your head and
adjust the headband around your head and the elasticized edge of the faceseal
under your chin. Make sure that the breathing tube is not twisted after donning.
Final Donning of Respirator System
• Attach the other end of breathing tube to blower unit (if not already
attached) by screwing adapters together.
• Remove any protective film covering the lens of the headpiece.
• Put on the belt and blower assembly and make any final adjustments to the
belt as necessary, keeping the breathing tube and hood behind the head.
• Turn the blower on by depressing and holding the on/off switch (Figure 33)
for approximately 1 second indicated by a
short beep.
• Buckle the belt onto the waist (blower unit
should be in the lower back of the wearer).
• Don the headpiece.
• Choose speed setting (see below).
• Place the hood on the head making any final
adjustments to the fit as required at this time
to ensure a comfortable and stable fit.
•Tuck inner bib into coveralls or shirt if using a hood with inner bib.
Final Donning
Front Back
CC20 Single Bib
CC20 Double Bib
RT Series
20LFL
20LF2L
Speed Selection
The EVAHL1 Blower is equipped with the ability for the user to select one of two
speeds for operation.
When the unit is initially turned on, the blower will operate at approximately 8.5
cfm = 240 lpm (high speed). Note: The battery life is reduced at the higher speed.
Pressing the on/off switch will change the speed to approximately
7 cfm = 198 lpm (low speed).
Pressing the on/off switch additional times will toggle the unit between the two
speeds.
NOTE
Speed change is confirmed by a short beep.
Figure 33
on/off switch
Do not enter a hazardous area until you are sure that the blower and hood are
fully operational and the blower is running. The user should periodically leave the
hazardous area to check the airflow through the system. If the low battery or low flow
alarm should sound, or if the user experiences any difficulty in breathing, or senses
any taste or any odors from the hazard, the user should leave the hazardous area
immediately. Failure to observe these warnings could result in death or serious injury.
WARNING
7
Loose-Fitting Facepiece Use/Final Donning/Speed Selection
www.bullard.com
Figure 32
EVAHL Series-Hazardous Location User Manual
(for use with Loose-Fitting Headtops)

www.bullard.com
8
/Low Battery Alarm/Doffing the Blower / Troubleshooting
Low Battery Alarm and Low Flow Alarm
The EVAHL1 Blower unit is equipped with a Low Battery Alarm and a
Low Flow Alarm.
The Low Battery Alarm will sound an intermittent electronic beep indicating that
there are approximately 15 minutes of remaining battery capacity. The delays
between beeps will get shorter and shorter as time runs out.
The Low Flow Alarm will sound a continuous electronic beep indicating that the
flow to the hood has dropped below the design specification of 185 lpm = 6.5 CFM
(Note: The NIOSH minimum required flow is 170 lpm = 6 CFM).
When either of these alarms sounds, the user should immediately:
•Leave the hazard area
•Remove the headpiece
•Disconnect the breathing tube from the hood
•Check the airflow with the airflow indicator (see page 4).
•Check the operation of the low-flow alarm by blocking the end of the
breathing tube. The device will first ramp up to compensate and if correct
flow cannot be achieved, the alarm will sound within 5 seconds.
If the airflow indicator indicates insufficient airflow, the battery should be fully
charged (see “Battery Pack” section), and/or the filter/cartridge should be
replaced.
NOTE
The EVAHL1 blower is provided with a circuit to protect the battery. It
will not allow the battery to be discharged below a safe voltage for the
cells, regardless of airflow, without the Alarm sounding. When the battery
reaches the voltage cutoff it will automatically cease operation.
Doffing the Respirator
Prepare to doff the blower, battery and hood in a safe, hazard-free area and
do the following (in conjunction with your employer’s standard operating
procedures):
• Remove the hood.
• Turn the blower off by holding down the ON/OFF switch for 5 seconds. This is
confirmed by a long beep and a shut down of the motor.
• Remove the waist belt.
• Disconnect the hood from the breathing tube.
• Disconnect the breathing tube from the blower.
• Clean and inspect components as necessary.
Troubleshooting
The following guide will assist you in troubleshooting to locate possible issues with your respirator:
Circumstance Possible Cause(s) Solution
Low Battery Alarm is sounding Low Voltage Charge the battery
Blower malfunction Return blower for anyalysis
Low Flow Alarm is sounding Clogged/damaged air-purifying filter element Replace the filter/cartridge
Battery Low Re-charge the battery
Blower malfunction Leave hazardous area immediately and check
equipment. If the problem persists and no damage
is found, return equipment for repair.
Replace breathing tube and/or hood.
Hood neck cuff is restricting flow Adjust neck cuff position
Smell or taste contaminant Equipment damaged Leave hazardous area immediately and check
equipment
Filter needs to be replaced Replace filter
Low airflow Leave hazardous area immediately and check
equipment
If the problem persists and no damage is found,
return equipment for repair
Blower unit does not run full service life Damaged Battery Return battery for analysis
Malfunctioning Battery Charger Return charger for analysis
Hood neck cuff is restricting flow Adjust neck cuff position

9
NIOSH Approval Label
www.bullard.com
EVAHL Series Approval Label
2 Cautions and Limitations A. Not for use in atmospheres containing less than 19.5 percent oxygen. B. Not for use in atmospheres immediately dangerous to life or health. C. Do not exceed maximum use concentrations established by regulatory standards. F. Do not use Powered Air-Purifying Respirators if airflow is less than four cfm (115 lpm) for tight-
fitting facepieces or six cfm (170 lpm) for hoods and / or helmets.
H. Follow established cartridge and canister change schedules or observe ESLI to ensure that
cartridges and canisters are replaced before breakthrough occurs.
I. Contains electrical parts that may cause an ignition in flammable or explosive atmospheres. J. Failure to properly use and maintain this product could result in injury or death.
L. Follow the manufacturer’s User Instructions for changing cartridges, canister and / or filters. M. All approved respirators shall be selected, fitted, used, and maintained in accordance with MSHA,
OSHA, and other applicable regulations.
N. Never substitute, modify, add, or omit parts. Use only exact replacement parts in the configuration
specified by the manufacturer.
O. Refer to User Instructions, and/or maintenance manuals for information on use and maintenance
of these respirators.
P. NIOSH does not evaluate respirators for use as surgical masks.
1 Protection HE - High Efficiency Particulate Air Filter for Powered, Air Purifying Respirators AM - Ammonia CD - Chlorine dioxide CL - Chlorine FM - Formaldehyde HC - Hydrogen chloride HF - Hydrogen fluoride MA - Methylamine SD - Sulfur Dioxide OV - Organic Vapor
Bullard 1898 Safety Way CYNTHIANA, KY 41031 USA 877-BULLARD (285-5273)
MODEL EVA/EVAHL SERIES POWERED AIR PURIFYING RESPIRATORS This respirator is approved only in the following configurations:
RESPIRATOR COMPONENTS
TC- PROTECTION1 ALTERNATE HOOD ASSEMBLIES
ALTERNATE
SUSPENSION
/ HARD HAT
ASSEMBLIES
ALTERNATE BREATHING
TUBES
ALTERNATE BLOWER UNIT
ASSEMBLIES
FILTER ASSEMBLY
ALTERNATE CARTRIDGE
ASSEMBLIES
ALTERNATE BATTERY
CONFIGURATIONS
ALTERNATE BELT ASSEMBLIES
ALTERNATE CHARGER
ASSEMBLIES
ACCESSORIES CAUTIONS AND
LIMITATIONS2
20LFXL
20LFL
20LFM
20LFXLHE
20LFLHE
20LFMHE
20LF2L
20LF2M
20LF2S
20LF2LHE
20LF2MHE
20LF2SHE
20TJN
20TJNT
20TICN
20TICNT
20SICVN
20SICVNT
20SICN
20SICNT
20TICSN
20TICSNT
GRH
GRHT
20TICH
20TICHT
20SICH
20SICHT
20SICVH
20SICVHT
RT1
RT1T
RT2
RT2T
RT3
RT3T
RT4
RT4T
20TG
20RT
30XXR
30XXP
51XXR
51XXP
PA1BT
PA1BTXS
PA1BTXL
PAHBT
PAHBTXS
PAHBTXL
PA20LFBT
PA20LFBTXS
PA20LFBTXL
EVAHL1
EVA1
EVA1BLK
PAPRFC3
PAPRFC4
PAPRFC5
EVAHLBAT1
EVABAT1
EVABELT1
EVABELT2
EVABKPK2
EVAHLSMC
EVAHLGC
EVASMC
EVAGC
608-150-8843
EVAEXT1
PA1AFI
20NC
ES42
20LCL
608-220-9137
RTLC
20SLBTC
PAPRSC2
20QCBTC
608-220-0002
POLYBTC
PAPRSC3
PAPRPFCOVER2
EVADCQC1
EVADCQC2
21C-0836HE XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXX XXXX XX XXXXXXXXXXXX X ABCFIJLMNOP
21C-0922HE XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X XXXXX XXXXX XXXX X XX ABCFIJLMNOP
23C-2510OV/CD/CL/HC/HF/SD/HE XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX X XXXX XXXXXXXXXXX XXXXX XABCFHIJLMNOP
23C-2765OV/CD/CL/HC/HF/SD/HE XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X XXXXX XXXXXX XX X XXX XABCFHIJLMNOP
23C-2886AM/CL/HC/MA/FM/HF/SD/CD/HEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX X XXXX XXXXXXXXXXX XXXXX XABCFHIJLMNOP
23C-3097AM/CL/HC/MA/FM/HF/SD/CD/HEXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX XXXXX XXXXXX XX X XXX XABCFHIJLMNOP

Warranty/Return Authorization
The following chemicals have been tested and approved as cleaning agents for the
blower housing, belt and battery:
A. Process NPD (1.256) from Steris
B. Spor Klenz (undiluted) from Steris
C. Clorox liquid bleach at 10% concentration
D. Sani-Cloth HB wipes
E. 100% Methanol
F. 70% IPA
Storage
When the blower is completely dry, store in a clean, dry area, away from direct
sunlight and sources of direct heat.
The storage temperature should be between 23º F to 129º F (-5º C to 54º C) with
humidity less than 90% RH.
One Year Limited Warranty
Bullard warrants to the original purchaser that the EVAHL Powered Air-Purifying
Respirator and Loose-Fitting Facepiece or Hood will be free of defects in material
and workmanship under normal use and service for a period of one (1) year from the
date of purchase. Bullard’s obligation under this warranty is limited to repairing or
replacing, at its option, articles that are returned within the warranty period and that
are, after examination, shown to Bullard’s satisfaction to be defective, subject to the
following limitations;
a) EVAHL Powered Air-Purifying Respirator and Loose-Fitting Facepiece or Hood must
be returned to the Bullard factory with shipping charges prepaid.
b) EVAHL Powered Air-Purifying Respirator and Loose-Fitting Facepiece or Hood must
not be altered from its original factory configuration.
c) EVAHL Powered Air-Purifying Respirator and Loose-Fitting Facepiece or Hood must
not have been misused, subjected to negligent use, or damaged in transport.
d) The date of purchase is within the one year warranty period. (A copy of the
purchaser’s original invoice showing the date of purchase is required to validate
warranty coverage.)
In no event shall Bullard be responsible for damages for loss of use or other indirect,
incidental, consequential or special costs, expenses or damages incurred by the
purchaser, notwithstanding that Bullard has been advised of the possibility of such
damages.
ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE (1) YEAR
FROM THE DATE OF PURCHASE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential
damages, or allow limitations on how long an implied warranty lasts, so the above
limitations or exclusion may not apply to you. This warranty gives you specific
Return Authorization
The following steps must be completed before Bullard will accept any returned goods.
Please read carefully.
Follow the steps outlined below to return goods to Bullard for repair or replacement
under warranty or for paid repairs:
1. Contact Bullard Sales Support by telephone or in writing at:
Bullard
1898 Safety Way
Cynthiana, KY 41031-9303
Toll-free: 877-BULLARD (285-5273)
Phone: [phone]
In your correspondence or conversation with Sales Support, describe the problem
as completely as possible. For your convenience, your sales support specialist will
try to help you correct the problem over the phone.
2. Verify with your sales support specialist that the product should be returned to
Bullard. Sales Support will provide you with written permission and a return
authorization number as well as the labels you will need to return the product.
3. Before returning the product, decontaminate and clean it to remove any hazardous
materials which may have settled on the product during use. Laws and/or
regulations prohibit the shipment of hazardous or contaminated materials. Products
suspected to be contaminated will be professionally discarded at the customer’s
expense.
4. Ship products to be returned, including those under warranty, with all transportation
charges pre-paid. Bullard cannot accept returned goods on a freight collect basis.
5. Returned products will be inspected upon return to the Bullard facility. Bullard
Sales Support will telephone you with a quote for required repair work which is not
covered by warranty. If the cost of repairs exceeds stated quote by more than 20%,
your sales support specialist will call you for authorization to complete repairs.
After repairs are completed and the goods have been returned to you, Bullard will
invoice you for actual work performed.
10
Cleaning
�WARNING
Avoid contaminant entry into the breathing tube, as this will compromise
respiratory protection and could result in death or serious injury. Consult your local
safety professional if you suspect that contaminant has entered the breathing
tube.
When cleaning the equipment, do the following:
• Ensure water does not enter filter/cartridges. Replace wet filter/cartridges.
• DO NOT use gasoline, organic-based solvents, or chlorinated degreasing fluids
(such as trichloroethylene), as they will cause damage.
• DO NOT immerse the equipment in water or other cleaning fluid, unless using
Bullard decontamination components.
• Use a lint-free cloth moistened in a mild solution of soap and warm water to
clean the outer surface of the equipment.
Failure to observe the instructions and warnings in this manual invalidates all
performance statements and approvals for this equipment and could result in
death or serious injury.

Ordering Information
Blower Assemblies
EVAHL1 Blower unit only
EVAHL2 Blower unit, belt, battery and charger
EVAHL3 Blower unit, belt, battery
Replacement Batteries and Chargers
EVAHLSMC Quick charger (1 port)
EVAHLGC Table top gang charger (6 ports)
EVAHLBAT1 Lithium Polymer Battery Pack (Black)
Replacement Cartridges
PAPRFC3 HE (6 per box)
PAPRFC4 OV/AG/HE (6 per box)
PAPRFC5 AM/FM/MA/AG/HE (6 per box)
Respirator Hoods (“T” suffix designates thread connection)
Single bib hood, for use with headband suspension
20TJ, 20TJT Tychem 2000 (QC) 20RT headband suspension
20TJN , 20TJNT Tychem 2000 (QC) No headband suspension
Double bib hood for use with headband suspension
20TIC, 20TICT Tychem 2000 (QC) 20RT headband suspension
20TICN, 20TICNT Tychem 2000 (QC) No headband suspension
20TICS, 20TICST Tychem 2000 (QC) 20RT headband suspension, taped and sealed seams
20TICSN, 20TICSNT Tychem 2000 (QC) No headband suspension, taped and sealed seams,
20SIC, 20SICT Tychem 4000 (SL) 20RT headband suspension, taped and sealed seams
20SICN, 20SICNT Tychem 4000 (SL) No headband suspension, taped and sealed seams
20SICV, 20SICVT Tychem 4000 (SL)20RT headband suspension, taped and sealed seams,
PVC lens
20SICVN, 20SICVNT Tychem 4000 (SL) No headband suspension, taped and sealed seams, PVC
lens
Double bib hood for use with Bullard hard hat (“T” suffix designates thread
connection)
20TICH, 20TICHT Tychem 2000 (QC) Hard hat not included
20SICH, 20SICHT Tychem 4000 (SL) Hard hat not included, taped and sealed seams
20SICVH, 20SICVHT Tychem 4000 (SL) Hard hat not included, taped and sealed seams, PVC lens
Loose fitting facepieces with sewn-in suspension
20LFXL Tychem 2000 (QC), Extra large
20LFL Tychem 2000 (QC), Large
20LFM Tychem 2000 (QC), Medium
20LF2L Tychem 2000 (QC), Large, narrow profile
20LF2M Tychem 2000 (QC), Medium, narrow profile
20LF2S Tychem 2000 (QC), Small, narrow profile
20LF2LHE 20LF LF FacepieceTychem 2000 Narrow Large HEPA
20LF2MHE 20LF LF Facepiece Tychem 2000 Narrow Medium HEPA
20LF2SHE 20LF LF Facepiece Tychem 2000 Narrow Small HEPA
20LFLHE 20LF LF Facepiece Tychem 2000 Traditional Large HEPA
20LFMHE 20LF LF Facepiece Tychem 2000 Traditional Medium HEPA
20LFXLHE 20LF LF Facepiece Tychem 2000 Traditional XL HEPA
Double bib hood for use without a headband suspension
RT1, RT1T Tychem 2000 (QC), Inflatable neck collar
RT2, RT2T Tychem 4000 (SL), Inflatable neck collar
RT3, RT3T Tychem 2000 (QC), Sport neck collar
RT4, RT4T Tychem 4000 (SL), Sport neck collar
Accessory Items for Hoods
20LCL Mylar lens covers, CC20 Series (25/pkg)
RTLC Mylar lens covers, RT Series (25/pkg)
Headband Suspensions and Hard Hats
20TG Standard headband suspension
20RT Sure-Lock®ratchet headband suspension
30WHP Hard hat with standard suspension, white
30WHR Hard hat with ratchet suspension, white
51WHP Hard hat with standard suspension, white
51WHR Hard hat with ratchet suspension, white
Accessories for Headbands Suspension and Hard Hats
RS6PC Standard replacement suspension for 30WHP hard hat
RS6RC Replacement ratchet suspension for 30WHR hard hat
RS4PC Standard replacement suspension for 51WHP hard hat
RS4RC Replacement ratchet suspension for 51WHR hard hat
20NC Chinstrap for 20TG and 20RT headband suspension
ES42 Chinstrap for C30 and S51 hard hats
Replacement Parts and Accessories
EVABELT1 Replacement belt
EVABELT2 Vinyl belt
PAPRSUSP1 Suspenders
EVAEXT1 Extension belt kit
PAPRSUSP1 PAPR suspenders (1 pair)
PA1AFI Air flow indicator
PAHBT Powered air hood breathing tube assembly; standard length
PAHBTXS Powered air hood breathing tube assembly; short length
PAHBTXL Powered air hood breathing tube assembly; long length
PA1BT Hood breathing tube assembly; includes tube and clamp; standard length
PA1BTXS Hood breathing tube assembly; includes tube and clamp; short length
PA1BTXL Hood breathing tube assembly; includes tube and clamp; long length
PA20LFBT Loose fitting facepiece breathing tube assembly; standard length
PA20LFBTXS Loose fitting facepiece breathing tube assembly; short length
PA20LFBTXL Loose fitting facepiece breathing tube assembly; long length
PA1BTS Breathing tube/cartridge seal
S18051 Breathing tube clamp (10/pack)
EVABKPK2 Ergonomic backpack harness
11
Ordering Information
EVAHL Series-Hazardous Location User Manual
(for use with Loose-Fitting Headtops)

©2020 Bullard. All rights reserved.
6081509758I (0420)
ISO 9001
certified
www.bullard.com
Bullard Center
2421 Fortune Drive
Lexington, KY 40509 • USA
877-BULLARD (285-5273)
Tel: [phone]
Fax: [phone]
Americas Operations
1898 Safety Way
Cynthiana, KY 41031 • USA
877-BULLARD (285-5273)
Tel: [phone]
Fax: [phone]
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Dieselstrasse 8a
53424 Remagen • Germany
Tel: [phone]
Fax: [phone]
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#03-04 The Signature
Singapore 486066
Tel: [phone]
Fax: [phone]