MSA G1 Facepiece User manual

MSAsafety.com
Operating Manual
G1 Facepiece
Order No.: D2058000/04

MSA Europe GmbH
Schlüsselstrasse 12
8645 Rapperswil-Jona
Switzerland
[e-mail]
www.MSAsafety.com
© MSA 2019All rights reserved

G1 Facepiece 3
GB
Contents
1 Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Correct Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Liability Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Safety and Precautionary Measures. . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Mask Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Harness Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Component Housing Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 G1 Heads-Up Display (HUD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Filter Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Donning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Leak Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Removing the Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Spectacle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Cleaning, Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Preparing the Mask for Cleaning or Disinfection. . . . . . . . . . . . . . . . 18
5.2 Suitable Cleaning and Disinfection Procedures . . . . . . . . . . . . . . . . 18
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2 Maintenance Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3 Maintenance of the Exhalation Valve . . . . . . . . . . . . . . . . . . . . . . . . 20
Removing the Spring Retainer and Exhalation Valve . . . . . . . . . . . . 21
Installing the Spring Retainer and Exhalation Valve . . . . . . . . . . . . . 22
6.4 Replacing the Speech Diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.5 Tightness Test of the Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.6 Visual Test and Function Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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7 Safekeeping and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.1 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.2 Spare Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.3 ATO Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

G1 Facepiece 5
Safety Regulations
GB
1 Safety Regulations
1.1 Correct Use
G1 Facepieces - hereafter called masks -are full face masks with a positive pressure connection.
They are not complete respiratory protective devices by themselves, but serve as facepieces
[EN 136 CL3+] for use with compressed air breathing apparatus of the G1 series and respiratory filters.
The mask as part of a respiratory protective device ensures an appropriately tight fit of the user’s face
against the ambient atmosphere.
When using a compressed air breathing apparatus, the operating manual for the compressed air
breathing apparatus must be read and observed.
If the mask is used as part of a filtering device using the filter adapter, respiratory protective filters
equipped with a standardized thread according to EN 148-1 must be used.The type and concentration
of contaminants and the oxygen concentration in the ambient air must be known to decide if the use of
a filtering device is permissible. The instructions for use of the respiratory filters have to be regarded,
including any information regarding the use in potentially explosive atmospheres. When in doubt use
a supplied air breathing apparatus. The permitted minimum oxygen concentration of ambient air
depends on national regulations.
When used in oxygen or an enriched-oxygen atmosphere, the increased potential hazard of flamma-
bility has to be regarded.
WARNING!
According to the European directive 89/656/EC it has to be verified before first use of the mask that a
correct size has been chosen (proper tight fit), that the mask can be worn in combination with other
protective equipment (for example a protective jacket), that it is a correct choice for the conditions at
the particular place of use and that it fulfils the ergonomic requirements.
WARNING!
Read this manual carefully before using the device. The device will perform as designed only if it is
used and maintained in accordance with the manufacturer's instructions. Otherwise, it could fail to
perform as designed and persons who rely on this device for their safety could sustain serious personal
injury or death.
Before use the product operability must be verified. The product must not be used if the function test
is unsuccessful, it is damaged, a competent servicing/maintenance has not been made, genuine MSA
spare parts have not been used.
1.2 Liability Information
MSA accepts no liability in cases where the product has been used inappropriately or not as intended.
The selection and use of the product are the exclusive responsibility of the individual operator.
Product liability claims, warranties also as guarantees made by MSA with respect to the product are
voided if it is not used, serviced, or maintained in accordance with the instructions in this manual.
Changes and modifications not expressly approved by the manufacturer will void the user’s authority
to operate the equipment.

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Safety Regulations
GB
1.3 Safety and Precautionary Measures
• The device may be used in explosive atmospheres according to the class stated in the
ATEX certification, see chapter 2.5.
• The ATEX class of any other equipment used together with this device has to be regarded as well.
The lowest class sets the limit.
• If the device is used in an explosive atmosphere, dissipative clothes and footwear must be used
in conjunction with dissipative grounds. When used in explosive atmospheres there must be direct
contact between the head harness and the head. Do not use head coverings (e.g.fire hoods)
under the head harness.
• If the device is used in an explosive atmosphere, the neck strap has to be correctly attached to
the mask with carabiner hooks, see chapter 2.5. (The rubber neck strap has to be attached to the
metal rings of the harness, the textile neck strap has to be attached to the lens ring with carabiner
hooks.)
• Use and storage of the mask with Kevlar (textile) harness in a vincinity that generates strong elec-
trostatic charges in explosive atmospheres is not allowed.

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Description
GB
2 Description
The inhalation air flows from the component housing of the mask past the inhalation valve to the inside
of the lens (thus keeping the lens fog-free) and then through the inlet valves into the nosecup.
The exhalation air passes through the exhalation valve directly to the ambient air.
Fixed Push-to-Connect component housing only: If in a safe atmosphere no demand valve is attached,
ambient air can be inhaled directly through an open port to facilitate breathing and speaking with no
resistance.
The faceblank is made of a special soft rubber compound and assures a snug, comfortable fit and a
tight seal. The mask and the nosecup are available in 3 sizes (small, medium, large).
The mask is available with different head harnesses and different component housings.
Fig. 1 Overview (not true to size)
1 Forehead strap 8 Nosecup
2 Buckle 9a Head harness rubber
3 Faceblank 9b Head harness Kevlar
4 Light pipes, left (fixed Push-to-
Connect only)
10 Filter adapter
5 Component housing 11a Nomex (textile) neck strap
6 Light pipes, right (fixed Push-to-
Connect only)
11b Rubber neck strap
7Lens
1
2
4
5
3
7
6
8
9b
9a
10
11a
11b

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Description
GB
2.1 Mask Versions
Harness Versions
The mask is available with different head harnesses; Kevlar (textile) 4-point or rubber (5-point).
The rubber head straps are numbered to indicate the correct tightening sequence.
Fig. 2 Kevlar (textile) harness
Fig. 3 Rubber harness

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Description
GB
Component Housing Versions
The mask is available with different component housings:
2.2 G1 Heads-Up Display (HUD)
When the mask version with the G1 fixed Push-to-Connect component housing is used in connection
with a G1 SCBA, the light pipes on the mask are part of the HUD. The HUD is integrated into the
demand valve and projects light into the mask.
The HUD provides the pressure and alarm status to the user through light pipes into the mask. The
pressure status is on the right side of the user, while the alarm status is on the left side of the user.
For details about the HUD, see G1 SCBA operating manual.
2.3 Filter Adapter
Using the filter adapter with the G1 fixed Push-to-Connect component housing, protective filters
equipped with a standardized thread according to EN 148-1 can be attached to the mask. The instruc-
tions for use of the respiratory filters have to be regarded, including any information regarding the use
in potentially explosive atmospheres.
Fig. 4 Fixed Push-To-Connect Fig. 5 Push-To-Connect
Fig. 6 M45x3 Fig. 7 ESA

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Description
GB
2.4 Marking
The mask is marked on the outer faceblank as shown in Fig. 8:
Fig. 8 Marking of mask body
2.5 Certification
The masks comply with the following directives, standards or standardized documents:
The Declaration of Conformity can be found under the following link: https://MSAsafety.com/DoC
1 Manufacturing location code
2 Serial number
3 For applicable ATEX classification, see operating manual.
4 EN standard, class
5 CE-marking with notified body number (DEKRA EXAM, Zertifizierungsstelle Dinnendahlstr. 9, 44809 Bochum)
6 Part number/ATO code
MY XXXXXX
EN 136:1998 CL3+
0158
XXXXXXXXX (X)
2
5
4
3
1
6
Approvals
Regulation (EU) 2016/425
0158
EN 136: 1998, class 3+
DEKRA DEKRA EXAM GmbH, Dinnendahlstr. 9, 44809
Bochum,Germany, Notified Body number: 0158

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Description
GB
Atex Categories
The lowest ATEX class of a part sets the limit for the complete device.
G1 Facepiece
Harness
Rubber I M1
II 1G IIC
II 1D
Kevlar (Textile)
Faceblank
I M1
II 1G IIC
II 1D
Neck strap
Rubber
I M1
II 1G IIC
II 1D
Textile
I M1
II 1G IIB
II 2G IIC
II 1D
Filter Adapter for Fixed Push-to-Connect
I M1
II 1G IIC
II 1D
Connector pieces
Push-To-Connect
M45x3
ESA
I M1
II 1G IIC
II 1D
Lens
Standard Lens
I M1
II 1G IIC
II 1D
Anti-fog lens
I M1
II 1G IIA
II 2G IIB
II 1D
Anti-scratch lens
I M1
II 1G IIB
II 2G IIC
II 1D

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Description
GB
Example:
ATO: A-M/I-M-E-R-P
A= Anti-fog lens
M/I= Faceblank: Medium
M= Nosecup: Medium
E= Head Harness: Rubber
R= Neck strap: Rubber
P= Regulator: Push to Connect
Atex Category:
I M1
II 1G IIA
II 2G IIB
II 1D

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Use
GB
3Use
The mask is carried using the neck strap in front of the chest. To ensure protection from dirt and debris,
ensure the mask opening is towards the user's body.
WARNING!
When used in explosive atmospheres there must be direct contact between the head harness and the
head. Do not use head coverings (e.g.fire hoods) under the head harness.
WARNING!
Ensure that the top of the mask seal only lies on the user's forehead. Hair or spectacle side arms
should not be between the mask's seal and the user’s skin.
The mask could otherwise leak. This danger also exists for instance for mask wearers with beards or
deep scars in the sealing area.
WARNING!
In order to guarantee a proper fit for those wearing glasses, the G1 Facepiece spectacle kit must be
worn since ordinary glasses cannot be worn under the mask.
3.1 Donning
(1) Spread the harness with both hands.
(2) Position the chin into the chin cup.

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Use
GB
3.2 Leak Check
In order to check the mask-to-face tightness a leak test must be performed before each use.
(3) Pull the head straps over your head.
a) Ensure that the harness is sitting correctly and is not
twisted.
(4) Adjust mask and tighten the straps firmly and evenly.
a) Tighten the lower straps first by pulling them straight
back, not out.
b) Tighten the temple straps in the same manner.
c) If present, tighten the top strap for best visibility and fit.
(1) Seal the inlet (component housing) with the palm of your
hand or by attaching the non-pressurized regulator.
(2) Check tightness.
(3) Inhale and hold breath for a few seconds.
The mask must stay collapsed on face.
(4) Exhale.
The exhalation valve should open and release the
pressure inside the mask.
(5) If necessary retighten the straps.
a) If the leak check fails, re-don the mask.
If the leak check still fails, the mask must not be used.

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Use
GB
3.3 Removing the Mask
(1) Loosen the head harness by pulling the buckles
forward using your fingers.
(2) Grip the chin straps and pull the head harness forward
over the head.
(3) Grip the front of the mask (as shown) and pull the
mask away and down from the user.

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Spectacle Kit
GB
4 Spectacle Kit
WARNING!
Before using a spectacle kit, an optometrist must examine the spectacle kit and prescribe the correct
lenses to fit into the lens frame on the spectacle kit.
Failure to obey this warning can result in serious injury or death.
(1) Flip the head harness over the front of the mask so the
harness is covering the lens of the mask.
This will open up the faceblank to make it easier to
install the spectacle kit.
(2) Squeeze in on the wire frame of the spectacle kit at the
large bends about 5 cm from the ends.
Do not overbend the wire.
(3) Push the top part of the frame into the lens. The face-
blank has three rubber tabs to grab the frame.
a) Place the frame in the middle of the lens with the
smaller tabs grabbing the wire frame.

G1 Facepiece 17
Spectacle Kit
GB
(4) Take one end of the wire frame and push it up into the
mask so it follows the edge where the lens and the
faceblank meet.
a) The end of the wire frame must be positioned into
small pockets in the faceblank on the edge of the
lens.
(5) Repeat step (4) on the opposite side.
(6) The frame for the spectacles can be adjusted up/down
and in/out depending on the facial features. Don the
mask and adjust to optimize visibility.

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Cleaning, Disinfection
GB
5 Cleaning, Disinfection
The cleaning and disinfection of the masks is performed in accordance with the cleaning intervals
chapter 6.2.
WARNING!
Do not use cleaning products containing hydrocarbons or solvents [e.g. nitro-thinner].
Cleaned parts must not be dried in radiant heat [sun, radiators].
When using a drying cabinet, the temperature must not exceed +60°C.
Perform a tightness test (chapter 6.5) after every cleaning, disinfection and maintenance or after every
exchange of parts.
5.1 Preparing the Mask for Cleaning or Disinfection
(1) Remove inhalation and exhalation valve discs.
(2) Unbutton the nosecup.
(3) Removed components must be separately cleaned and disinfected.
(4) Dry mask and components and reassemble mask in reverse order.
(5) Perform a tightness test [chapter 6.5].
5.2 Suitable Cleaning and Disinfection Procedures
WARNING!
Depending on lens type, only certain cleaning and disinfection procedures are permitted.
Only use the procedures permitted for the lens type, other procedures will damage the lens.
Follow the washing agent’s user instructions on this CD/DVD.
The power supply for the HUD (if applicable) is not part of the G1 Facepiece and is there-
fore not damaged during cleaning.
Procedure
Part number
washing instruc-
tion
Mask with
Standard Lens
(Marking P)
Mask with
Anti-Fog Lens
(Marking A)
Mask with
Anti-Scratch-
Lens (Marking H)
Cleaning/Disinfec-
tion by hand 10127480 XXX
Cleaning/Disinfec-
tion washing
machine (tumbling
type)
10127346 X---X

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Cleaning, Disinfection
GB
Lens Identification
Fig. 9 Marking
1 Marking placement
2 Mask with Standard Lens (Marking P)
3 Mask with Anti-Fog Lens (Marking A)
4 Mask with Anti-Scratch Lens (Marking H)
23
1

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Maintenance
GB
6 Maintenance
6.1 Maintenance Instructions
This product should be regularly checked and serviced by trained specialists. Inspection and service
records must be maintained. Always use original parts from MSA.
Repairs and maintenance must be carried out only by authorized service centres or by MSA. Changes
to devices or components are not permitted and will result in loss of approval.
MSA is liable only for maintenance and repairs carried out by MSA.
6.2 Maintenance Intervals
*) For a 2-year interval cleaned and disinfected masks have to be stored airtight. Otherwise masks
should be cleaned and disinfected at least semi-annually. After each cleaning and disinfection the
mask must be checked.
**) For airtightly packed face pieces, which are not exposed to increased climatic and mechanical stress
[for example transport on vehicles], this interval can be extended to 2 years.
6.3 Maintenance of the Exhalation Valve
In case of a leak remove the exhalation valve disc and replace it with a new one as follows:
MSA recommends the following maintenance intervals. If necessary considering the
usage, tasks may be at even shorter intervals than indicated.
Observe national laws and regulations!
If in any doubt, ask your local MSA contact person.
Work to be
Performed
Maximal Intervals
Before use After Use 6-monthly Two
years
Four
years
Six
years
Cleaning and
Disinfection*) XX
*) X*)
Visual, Functional
and Tightness
Check **)
XX
**)
Replacement of
the exhalation
valve disc
X
Replacement of
the Speech
Diaphragm
X
Replacement of
the O-ring for
component
housing
X
User check X
The year of manufacture is located on the valve disc.