Sizewise NPT3 User manual

User
Manual
#8105 Rev. 3.0
03.04.2021
User Manual
Sizewise NPT3™
TM

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Table of Contents
Definition of Symbols..................................................................................................................... 3
Manual Definitions ......................................................................................................................... 3
Warnings and Cautions................................................................................................................... 3
Device Information......................................................................................................................... 4
Description of the Device ............................................................................................................... 4
Purpose of the Device..................................................................................................................... 4
Indications for Use.......................................................................................................................... 5
Specifications.................................................................................................................................. 5
Mattress Cover................................................................................................................................ 6
Control Unit (optional) ................................................................................................................... 6
Unpacking and Set-Up Instructions................................................................................................ 7
Unpacking/Parts Breakdown .......................................................................................................... 7
Unpacking Instructions................................................................................................................... 7
Set-Up on Sizewise Bed Frames..................................................................................................... 7
Operating Instructions..................................................................................................................... 9
Modes of Operation ........................................................................................................................ 9
Optional Control Unit Operation.................................................................................................... 9
Keypad Quick Reference.............................................................................................................. 10
Patient Care Functions.................................................................................................................. 11
Placing the Patient on the Mattress Surface.................................................................................. 11
Positioning the Patient .................................................................................................................. 11
Prone Position............................................................................................................................... 12
Bedpan Placement and Removal.................................................................................................. 12
Removing the Patient from the Mattress Surface......................................................................... 12
Safety Tips.................................................................................................................................... 13
Seven Zones of Bed Rail Entrapment........................................................................................... 13
Storage and Disposal..................................................................................................................... 14
Important Safety Instructions........................................................................................................ 14
Mattress Cleaning Instructions ..................................................................................................... 15

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Polycarbonate/Polyurethane Mattress Top Cover ........................................................................ 15
Laundry Instructions..................................................................................................................... 16
Mattress Base................................................................................................................................ 17
Cleaning Blood and Other Excretions .......................................................................................... 17
Control Unit Cleaning Instructions............................................................................................... 17
Maintenance.................................................................................................................................. 18
Troubleshooting............................................................................................................................ 21
Warranty Information ................................................................................................................... 22
User Assistance Information......................................................................................................... 26
HEPA Filter................................................................................................................................... 19

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Definition of Symbols
Manual Definitions
Throughout this manual different type fonts and icons are used to aid user readability and
understanding of the content. Below are some examples.
Standard Text Used for regular information.
Bold Face Text Emphasizes a word or phrase.
NOTE: SETS APART SPECIAL INFORMATION OR IMPORTANT
INSTRUCTION CLARIFICATION.
Warnings and Cautions
Warnings/Cautions: This symbol is intended to alert the user to the presence of
important operating, maintenance or servicing instructions. Disregarding a
warning could result in patient and/or user injury as well as damage to equipment.
Electrical Shock Hazard Warning:This symbol is intended to alert the user to
the presence of electrical shock hazards. It is important to follow all instructions
and special procedures to avoid electrical shock to the operator, caregiver
and/or patient.

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Device Information
Description of the Device
The system consists of a non-skid mattress base, a series of foam filled air chambers, encased
in a foam cavity, and a low friction, anti-shear top cover. A gel-infused viscoelastic comfort
layer foam topper is laminated to the top of the foam cavity and serves as the support surface
underneath the patient. The foam cavity also includes bolsters at the sides and ends of the
mattress, providing added patient stability and positioning. The system also includes atapered
heel section that is designed to further reduce pressure for the sensitive heel area. The air cells
run laterally within the mattress. The optional air pump connects to the mattress at the patient
foot end.
CAUTION: Use of NPT3TM is only one element of care in the prevention and
treatment of pressure injuries. Frequent repositioning, proper care, routine
skin assessment, wound treatment and proper nutrition are but a few of the
elements required in the prevention and treatment of pressure injuries. As
there are many factors that may influence the development of a pressure injuries
for each individual, the ultimate responsibility in the prevention and treatment
of pressure injuries is with the health care professional.
Purpose of the Device
NPT3 non-powered system provides non-powered zoned pressure redistribution or
alternating pressure redistribution when utilizing a control unit. These systems are used for the
prevention and treatment of pressure injuries. NPT3 consistsof air cylinders that run
laterally underneath the body and are contained in a foam cavity. On top of the air cells is a
gel-infused thermal neutral foam. This foam creates a positive temperature interface for an
optimal microclimate environment and has the ability to rapidly dissipate or absorb heat
whichever is determined to be needed. Temperature-controlled memory foam provides for
greater patient comfort and improved patient satisfaction.
The heel section of the mattress is tapered to further reduce pressure for the sensitive heel area.
Both the air flotation system and the foam top surface aid in pressure redistribution and in
maintaining low interface pressures throughout the surface. The optional alternating model
comes with a quiet, energy-efficient pump that provides a 10, 15, 20 or 25 minute cycle time
designed to maintain low interface pressures throughout the mattress, while redistributing peak
pressures as the cycle alternates. The inflation levels are designed to maintain low
interface pressures throughout the mattress at all times. The surface is also designed to be
effective during treatment of pressure injuries by preventing further tissue breakdown.
The cover material is bacteriostatic, flame-resistant, fluid-resistant, tear-resistant, cleanable and
replaceable. Since the cover does not allow fluids to penetrate the surface, maintenance is
minimal. Clean and disinfect the outer surface using the cleaning protocol in this manual.

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Indications for Use
The NPT3 will provide pressure redistribution for individuals at risk for pressure injuries
development. The polycarbonate top cover working in conjunction with the Mattress Asset
Protection (MAPTM) Liner will reduce shear as the patient is repositioned or transferred.
Phase changing gel induced in the memory foam topper will enhance microclimate control and
patient comfort by keeping a thermal neutral surface temperature of 85-87 degrees. Those
patients at higher risk for pressure injuries development may be managed by adding the legacy
pump feature. This will convert the mattress to an active alternating surface.
Specifications
Dimensions
32” Mattress .................................................7” X 32” X 80” / 17.5 cm X 81 cm X 203 cm
35” Mattress .................................................7” X 35” X 75” / 17.5 cm X 89 cm X 191 cm
7” X 35” X 80” / 17.5 cm X 89 cm X 203 cm
7” X 35” X 84” / 17.5 cm X 89 cm X 213 cm
39” Mattress .................................................7” X 39” X 80” / 17.5 cm X 99 cm X 203 cm
42” Mattress ................................................7” X 42” X 80” / 17.5 cm X 107 cm X 203 cm
48” Mattress ................................................7” X 48” X 80” / 17.5 cm X 122 cm X 203 cm
54” Mattress ................................................7” X 54” X 80” / 17.5 cm X 137 cm X 203 cm
60” Mattress ................................................7” X 60” X 80” / 17.5 cm X 152 cm X 203 cm
Weight Capacity
32” Mattress ...............................................................................................500 lbs. / 227 kg
35” Mattress ...............................................................................................500 lbs. / 227 kg
39” Mattress ...............................................................................................750 lbs. / 340 kg
42” Mattress ...............................................................................................750 lbs. / 340 kg
48” Mattress ............................................................................................1,000 lbs. / 454 kg
54” Mattress ............................................................................................1,000 lbs. / 454 kg
60” Mattress ............................................................................................1,000 lbs. / 454 kg

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Mattress Cover
Extreme Polycarbonate is a polycarbonate-polyurethane material blend that offers a
bacteriostatic, flame-resistant, fluid-resistant and tear-resistant mattress cover. Extreme
polycarbonate has a superior chemical resistance to withstand hospital cleaning protocols
without compromising the integrity of the fabric. Extreme polycarbonate resists breakdown
with most disinfectants and cleaners based on chlorine, alcohol, peroxide, quaternary
ammonium, chloramine, and phenol.
Control Unit (optional)
Provides a 10, 15, 20 or 25 minute cycle time designed to maintain low interface pressures
throughout the mattress, to redistribute peak interface pressures during the cycle and to further
relieve peak pressure points as the cycle alternates.
Foam ..............................................................High-Density Polyurethane Open Cell Foam
Air Cells.........................................................70 Denier Nylon / Polyurethane Foam Filled
Physical Characteristics

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Unpacking and Setup Instructions
Unpacking/Parts Breakdown
Gel-infused Thermal Neutral Foam Topper: A layer of high-density viscoelastic memory
foam for added patient comfort is laminated to a polyurethane
foam layer that is then laminated to the foam cavity.
Foam Cavity:........................A foam cavity is used to contain the air cells and stabilize the
entire surface. This foam cavity provides added edge support and
is tapered at the foot end to provide additional pressure relief in the
heel section.
MAPTM Liner:…….……….An inner liner that is below the mattress top cover, but above the
foam construction. The liner is a safe, simple and secure method of
protecting medical mattresses from contamination risks in order to
safeguard against patient infection.
Air Cells:...............................Twelve foam-filled polyurethane air cells are divided into three
separate pressure zones. By utilizing different foam densities
(firmness types) the air cells are specifically designed to meet
the pressure needs for the different zones of the body.
Cover:....................................The bacteriostatic top fabric is fire-resistant, fluid-resistant,
tear-resistant, cleanable and replaceable. It consists of a
polycarbonate/polyurethane cover or a 4-way stretchable cover.
Mattress Height:...................The total pressure management surface height is 7” (18 cm).
Friction/Shear: .....................All cover choices serve to reduce friction and shear.
Replacement Mattress:........The mattress can be placed directly on a hospital bed frame.
Pressure Management:........This replacement mattress system is designed to provide pressure
management in the prevention and treatment of pressure injuries.
Fire Barrier:.........................Internal fire barrier encases internal components in order to meet
all currently designated fire safety codes.
Unpacking Instructions (no tools required):
Remove the products from the packing material and examine for shipping damage. If damage is
detected in shipping, contact the freight company and file a damage complaint immediately.
Setup on Sizewise Bed Frames
Follow these steps for installation on Sizewise (and most non-Sizewise) bed frames:
1. Verify mattress is the correct size for the bed frame top deck. Refer to Side Rail Entrapment
Guidelines. (See Table of Contents)
2. Place bed frame in flat position.
3. Install the mattress with the sloped heel section toward the foot of the bed.
4. Optional connect control unit and perform safety checklist in maintenance section. (See
Table of Contents)
5. Disinfect mattress prior to patient use. Refer to Mattress Cleaning Instructions (See Table
of Contents)

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Warnings or Safety Instructions relating to setup:
NOTE: Use of NPT3 is only one element of care in the prevention and treatment of
pressure injuries. Frequent repositioning, proper care, routine skin assessment, wound
treatment and proper nutrition are but a few of the elements required in the prevention and
treatment of pressure injuries. As there are many factors that may influence the development of a
pressure injuries for each individual, the ultimate responsibility in the prevention and treatment
of pressure injuries is with the health care professional.
WARNING: Make sure power cord is plugged into a properly grounded AC
110V outlet.

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Operating Instructions
Modes of Operation
NPT3 provides static non-powered pressure redistribution. Using the optional control unit
provides alternating pressure in 10, 15, 20 or 25 minute cycle times.
1. Place the mattress on the bed frame with the sloped heel zone and connectors at the foot
of the bed.
2. If using the control unit, hang unit on the end of the bed using the hangers, or place on a
stable horizontal surface. (Do not place the control unit on the floor!)
To connect the control unit, insert the connectors at the end of the external manifold into the
corresponding connectors on the side of the mattress. Ensure the hoses are not "kinked" or
"twisted". Push in securely until a "click" sounds. Next connect the opposite end of the hose
assembly to the control unit.
Optional Control Unit Operation
1. Turn Master Power switch to the ON position. A beep will sound at start of operation.
2. When power is turned ON, the control unit will indicate Alternating Pressure mode. It
will first inflate all mattress air cells to 30mmHg and then enter Alternation mode.
3. The alternating cycle time and pressure level are preset to the middle settings. Select
from the touch panel to adjust the cycle time and pressure level. It is recommended to set
the pressure level at a low setting.
4. For quick deflation:
a. Turn power OFF.
b. Remove the hoses from the control unit.
5. Low Pressure alarm
a. The Low Pressure alarm will sound if the mattress has not reached 30mmHg after
45 minutes when first turned on.
b. During normal operation the unit will constantly monitor air pressure. If the unit
senses a drop in pressure after reaching an input setting, the alarm will beep and
the LED will come on.
i. Press the Alarm Reset button to silence the audible alarm. The LED will
start blinking. Press the Alarm Reset button again to turn the audible
alarm back on and the LED will remain constantly on.
6. Autofirm
a. Press the autofirm button to automatically inflate the mattress to the maximum
level. The pressure will return to a previously set level after 30 minutes.

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Keypad Quick Reference
Alarm Reset
Resets the audible alarm.
Mode
Push to select either Static
or Alternate therapy mode.
Autofirm
Quickly inflates mattress to
maximum firmness. Unit
returns to previous setting
after 30 minutes.
Cycle Time
Press to change the cycle
time.
Soft
Press to decrease firmness
to the mattress.
Firm
Press to increase firmness to
the mattress.

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Patient Care Functions
Placing the Patient on the Mattress Surface
Place the patient on the mattress surface from a bed or stretcher with a transfer device, if/
when using NPT3 with optional pump. The mattress should be set in autofirm mode. In
order to ensure proper immersion and envelopment of the patient, the user should:
1. Position patient on surface in center of bed.
2. Initialize soft/firm settings on control unit.
3. Wait a moment to allow internal sensors to activate pressure redistribution. Generally,
depending on patient body makeup, initial pressure redistribution is complete in
approximately 2-3 minutes.
4. Elevate the head of the bed to at least 30 degrees.
5. Unzip the mattress and visually inspect the height of the cells for sufficient inflation.
There should be several inches between the patient and the frame of the bed. Adjust the
air flow accordingly. Ask the patient if they can feel the bed frame beneath them. If yes,
add air incrementally. Repeat until patient no longer feels the frame beneath them.
6. If the patient cannot reply verbally, unzip the mattress and visually inspect the height of
the cells for sufficient air inflation. There should be several inches between the patient
and the frame of the bed. Adjust the air flow accordingly.
7. CPR
a. The standards for life support recommended by the American Heart Association
for performing CardioPulmonary Resuscitation (CPR) recommend a hard level
surface for performing CPR, moving the person to the floor if possible. For
performing CPR on NPT3, place a CPR board, lower the head of the bed,
position the patient on their back and follow standard CPR procedures of the
facility.
Positioning the Patient
When moving a patient the control unit should be in autofirm Mode, if/when using NPT3 with
optional pump.
To reposition the patient, change the control unit to autofirm Mode. This makes the
mattress surface firm and facilitates the repositioning of the patient with less strain on the
caregiver. When the patient has been repositioned, press auto firm to return to the
previous setting.
NOTE: DO NOT leave a patient unattended on the mattress surface with the safety side rails in
the down position. When leaving a patient, secure the safety side rails in the up position. Make
sure the safety side rails are high enough to properly protect the patient when the mattress is fully
inflated, while continuing to be mindful of the FDA guidelines on bed rail entrapment.
Backrest Up
When the head of the bed is elevated, it may be necessary to manually increase the mattress
firmness to compensate for the additional weight placed in the center portion of the mattress,
if/when using NPT3 with optional pump. Observe the patient for a short time after raising the
head of the bed to make sure the buttocks and thigh areas are not “bottomed out”. See the
above section “Placing the patient on the mattress surface”.

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Prone Position
Do not leave a patient positioned prone on the mattress surface. The decision to position a patient
prone should be at the discretion of the facility's medical staff.
Bedpan Placement and Removal
Position the patient’s hips over the center of the mattress. Using Static Mode, lower the pressure
setting with the Firm/Soft button, if/when using NPT3 with optional pump. Turn the patient
into the side-lying position and place the bedpan.
The pressure in the center section of the mattress will lower to make inserting the bedpan easier.
The firmness setting may be adjusted to increase the firmness of the center section after the pan
is placed in position.
When the bedpan is to be removed, logroll the patient off the bedpan and remove it. Readjust the
firmness level to the appropriate setting. Select Static mode and wait for the mattress to
completely re-inflate before activating alternating pressure mode again.
NOTE: Always remove the bedpan before entering the Alternating Pressure mode.
Removing the Patient from the Mattress Surface
If the patient is to be removed with a lift and transfer, set the control unit into autofirm mode,
if/when using NPT3 with optional pump. Allow the mattress to firm and position the patient
into the lift. When the patient has exited the bed, the control unit can be turned off.
If the patient can sit up and is mobile, lower the firmness level to the lowest setting and wait for
the mattress to soften in the middle. The patient can sit up and the mattress will conform to the
body making a more stable platform for patient egress. When the patient has exited the bed, the
control unit can be turned off.

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Safety Tips
Seven Zones of Bed Rail Entrapment
If the patient would have any clinical conditions that could result in risk of falling or improperly
lying in bed, the bed should be left at its lowest setting and in flat position when not attended.
Sizewise recommends the use of bed rails if they are available. There are seven zones of bed rail
entrapment.
WARNING: Bed rail entrapment is a serious health risk that can result in serious
injury or even death. Sizewise recommends the caregiver be mindful of the
most up-to-date FDA guidelines relevant to bed rail entrapment, as serious injury
can result. When using an Air Therapy system the caregiver is
responsible for ensuring the mattress properly fits the bed frame. It is also the
care provider’s ultimate decision whether or not to use bed rails with the patient.
Zone 1: Within the Rail
Zone 2: Under the Rail, Between the Rail Supports or
Next to a Single Rail Support
Zone 3: Between the Rail and the Mattress
Zone 4: Under the Rail, at the Ends of the Rail
Zone 5: Between Split Bed Rails
Zone 6: Between the End of the Rail and the Side
Edge of the Head or Footboard
Zone 7: Between the Head or Footboard and the
Mattress End
Zone Seven
Zone Three
Zone Five
Zone Six
Zone Four
Zone TwoZone One

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Storage and Disposal
Always store the surface flat on a clean, level surface. Avoid storage of other equipment on top
of the support surface. DO NOT expose the control unit to humidity greater than 95%.
End-of-life Sizewise products must be disposed of properly according to local laws and
regulations. Please contact Sizewise or your local authorities for disposal and recycling options.
Important Safety Instructions
Unpacking and Setup Instructions
Keep out of direct sunlight.
(110V unit ONLY) Ensure the power cord is plugged into a properly grounded AC 110V
outlet.
Safety Tips
Medical equipment should not be used, stacked or located on or around equipment that
may create electromagnetic interferences.
Using other manufacturers’ cables and accessories may affect EMC performance.
Unauthorized use of these items will void warranty and could result in patient and/or user
injury as well as damage to equipment or other property.
The use of cables or accessories other than those for which the blower was designed or
tested can significantly degrade emissions and immunity performance.
DO NOT use the device if the power cord is cut, frayed or loosely connected.
Mattress Cleaning Instructions
It is recommended that gloves and protective clothing be worn at all times during
cleaning and disinfecting.
DO NOT autoclave.
The mattress requires regular maintenance to ensure performance and avoid premature
wear, damage and injury.
Troubleshooting
Only authorized personnel should engage in the troubleshooting process.
Troubleshooting by unauthorized persons could result in personal injury or equipment
damage.
To avoid electrical shock, DO NOT open the control unit. Refer servicing to qualified
personnel only.

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Mattress Cleaning Instructions
WARNING and CAUTION:
It is recommended that gloves and protective clothing be worn at all times during
cleaning and disinfecting.
Do not autoclave.
NOTE: Improper cleaning, rinsing or the incorrect use of cleaning agents can lead to premature
fabric discoloration and breakdown of the fabric’s fluid resistance, stain resistance and fabric
strength. Properly rinsing all cleaning agents and disinfecting chemicals is a critical step in
extending the life of covers on medical mattresses and support surfaces.
Over time, cleaning solutions may cause damage to the integrity of the fabrics used for support
surfaces. Cleaning agents that are strong enough to be efficacious cleaners and disinfectants may
cause degradation of the same fabrics on which they are being used.
To minimize the negative impact of cleaning agents:
Contact time must be monitored and kept to the required time identified on the
manufacturer’s instructions.
All cleaning solutions must be diluted in accordance with manufacturer’s instructions.
All covers must be rinsed after every cleaning cycle. Rinsing of the support surface
covers with clean water as the immediate step after the disinfection process is
fundamental to extending the usable life of the covers.
NOTE: Only the outer cover of the mattress requires cleaning and maintenance. Disassembly
of the support surface for maintenance of internal components is not recommended. Do not use
harsh solvents or cleaners. Special care should be used to not puncture the mattress with needles
or sharp instruments. This may result in loss of integrity of the mattress cover or internal
components.
Polycarbonate/Polyurethane Mattress Top Cover
The polycarbonate/polyurethane material is resistant to a wide variety of hospital cleaners and
resists breakdown with disinfectants and cleaners based on chlorine, alcohol, peroxide,
quaternary ammonium, chloramine and phenol.
Personal Protective Equipment (PPE) should always be used as directed by the disinfectant’s
Material Safety Data Sheet.
1. Prepare the disinfectant according to the manufacturer’s recommendations.
2. Prepare a separate bucket of warm, fresh water to be used for rinsing the equipment after
cleaning/disinfecting procedures are completed as instructed.
3. All surfaces of the mattress are to be wiped using a cloth dampened with the disinfectant,
prepared as directed by the manufacturer’s recommendations, to remove organic material
and visible soil.
4. Allow the mattress shell to remain wet with disinfectant solution for the manufacturer’s
recommended contact time.

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5. Stains on the mattress top cover may be treated using an approved stain remover,
according to the manufacturer’s recommendations.
6. Rinse all surfaces of the mattress with fresh water and clean cloth to remove chemical
and organic residue.
No Abrasives:Abrasive cleaners and abrasive cleaning devices (scouring sponges) will
dramatically reduce the life of any polyurethane surface. Do Not Use Solvents!
Follow Dilution Recommendations:One of the most significant errors in cleaning
mattress surfaces is not diluting a cleaner according to manufacturer recommendations.
Most surface cleaners are sold in concentrated forms and are intended to be diluted,
usually with a large percentage of water. Failing to do this can shorten the life of the
mattress surface significantly.
Rinse After Using A Cleaning Agent: When you wipe across a surface with a
cleaner/chemical strong enough to kill bacteria, you must rinse afterward. Leaving the
cleaner to dry on the surface will shorten its lifespan.
NOTE:To ensure that approved chemical agents are being used for the polycarbonate/
polyurethane,contact your Sizewise representative.
Equipment must be disinfected using an EPA-registered, hospital-grade disinfectant, according to
the manufacturer’s recommendations for use.
Laundry Instructions
If additional cleaning is necessary, top covers may be removed and laundered using standard
hospital disinfectant/detergent. DO NOT use temperatures in excess of 120F (49C).
1. Set washing machine to Regular Cycle.
2. Pre-soak with disinfectant/detergent in cold water for 10 minutes. DO NOT USE
HARSH SOLVENTS OR CLEANERS.
3. Main wash cycle: 15 minutes (time dependent on soil level).
4. Rinse cycle: 5 minutes, minimum.
5. Spin/Drain cycle: 5 minutes, minimum.
After washing, the mattress top cover is to be air dried or dried in a dryer at very low or no
heat to protect it from heat-related damage.

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Mattress Base:
1. Prepare the disinfectant according to the manufacturer’s recommendations.
2. Prepare a separate bucket of warm, fresh water to be used for rinsing the equipment after
cleaning/disinfecting procedures are completed as instructed.
3. All surfaces of the mattress are to be wiped using a coarse cloth dampened with the
disinfectant, prepared as directed by the manufacturer’s recommendations, to remove
organic material and visible soil.
4. Allow the mattress shell to remain wet with disinfectant solution for the manufacturer’s
recommended contact time.
5. Stains on the mattress base may be treated using an approved stain remover, according to
the manufacturer’s recommendations.
6. Rinse all surfaces of the mattress with fresh water and a clean cloth to remove chemical
and organic residue.
7. After washing, the mattress base must be allowed to air dry.
Cleaning Blood and Other Excretions
Blood and other excretions should be wiped up while wet, if possible. These substances are
more difficult to remove once they have dried to surfaces. Dried blood and other excretions are
to be removed using ample disinfectant solution in order to moisten the substance and make it
easier to clean.
Control Unit Cleaning Instructions
NOTE: Hand clean only. DO NOT place in sterilization room or chamber.
1. Personal Protective Equipment should be used as directed by the Material Safety Data
Sheet for the disinfectant.
2. Prepare the disinfectant according to the manufacturer’s recommendations.
3. Turn off the control unit and disconnect it from all electrical power to avoid electrical
shock.
4. When cleaning the control unit avoid excessive moisture, especially in areas where there
are electrical connections and components, to prevent damage.
5. All surfaces of the control unit and the power cord are to be wiped using a coarse cloth,
dampened with the disinfectant solution prepared as directed by the manufacturer’s
recommendations, to remove organic material and visible soil.
6. Allow the control unit to remain wet with disinfectant solution for the manufacturer’s
recommended contact time.
7. Rinse all surfaces of the control unit with fresh water and use a clean cloth to remove
chemical and organic residue.
8. After cleaning, all surfaces are to be dried with a clean, dry cloth.
Factory filter ONLY
Control unit air filter (foam filter) must be cleaned weekly. Replacement of the control
unit air filter is recommended every 6 months.
1. Remove vented filter cover and factory filter.
2. Clean with prepared disinfectant solution and allow to air dry.
3. Reinstall the filter when dry.
NOTE: To keep equipment working efficiently and effectively for an extended time period, it is
essential to make sure the equipment is cleaned regularly and well maintained.
NOTE: DO NOT attempt to clean HEPA filters, as they are to be removed and replaced only.

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Maintenance
CAUTION: The mattress requires regular maintenance to ensure performance
and avoid premature wear, damage and injury.
Check the items on this chart at the indicated intervals. If any of the items are loose, worn, bent
or distorted immediately have them checked and/or repaired by an authorized Sizewise
technician. Frequent maintenance and servicing will improve performance and extend product
life. Weekly One Month Three Months
Factory Filter X
Top Cover X
Mattress Base X
Mattress Connections X
Control Unit Operation X
Power Cord X
The following is an equipment safety checklist that can be used with the maintenance chart to
maintain and service this product:
Inspect top cover for punctures, rips, tears or damage.
Inspect mattress base for punctures, rips, tears or damage.
Connect the control unit and verify proper operation (if installed).
Ensure air filter is clean and properly installed into control unit (if installed).
Ensure mattress is clean/disinfected and patient ready.
All power cords are fastened in a manner to keep them free from moving or pinching parts. At
any time parts are replaced, all cords should be secured into proper position to prevent damage.
Factory Filter
The factory filter must be cleaned weekly with disinfectant solution (see cleaning section).
Replacement of the factory filter is recommended every 6 months.
HEPA Filter
X

−Locate and remove vented filter cover.
−Remove factory filter from filter cavity.
−Ensure HEPA filter is clean.
−Place HEPA filter on front of factory filter.
−Re-install filters in filter cavity.
−Re-install vented filter cover.
HEPA Filter
HEPA: (High Efficiency Particulate Air) filter.
NOTE: HEPA filters aid in contamination control for facilities. HEPA filters do not filter out
gases and odor molecules such as chemical vapors and cigarette smoke.
NOTE: HEPA filter must be used in conjunction with the manufacturer supplied filter. DO
NOT attempt to install HEPA filter without the original equipment filter.
NOTE: Ensure factory filter is completely dry before placing HEPA filter in unit.
NOTE: The HEPA filter is to be installed in applicable models and pumps in conjunction
with the next factory filter cleaning procedure.
Installation
NOTE: Installation and/or handling of HEPA filter requires PPE. Service personnel
should wear a mask, gloves, and protective clothing to avoid exposure to possible
contaminants.
NOTE: Tools are not required for installation of HEPA filter.
NOTE: Ensure unit is off and/or removed from power source prior to servicing or
replacement of filter or HEPA filter.
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