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Do not use the SR 500 Powered Air-Purifying Respirator with
respiratory protection inlet covering if the respirator fails any
of the requirements of the user inspection and performance
checks. Do not use the respirator until all necessary repairs
have been made and the respirator passes the performance
check.
Do not remove the respirator while you are in a hazardous
atmosphere. Do not remove the respirator until you are in clean
air. Leave the contaminated area immediately if any of the
following conditions occur.
– Any part of the system becomes damaged.
– Airflow into the respiratory protection inlet covering
decreases or stops.
– Breathing becomes difficult.
– You feel dizzy or your vision is impaired.
– You taste or smell contaminants.
– Your face, eyes, nose or mouth become irritated.
– You suspect that the concentration of contaminants may
have reached levels at which this respirator may no longer
provide adequate protection.
If excessive wear and/or damage to the respirator or its
components is observed at any time, do not use the respirator
until all necessary repairs have been made and the wearer
has successfully completed the User Performance Check
described in the SR 500 Powered Air-Purifying Respirator
User Instructions.
The respiratory protection inlet coverings materials are not
flame resistant and must not be used around heat, flames or
sparks, or in explosive atmospheres.
If the seal of the respiratory protection inlet covering is not firmly
in contact with the face or neck, the pressure necessary for
maintaining the correct protection level will not be established.
The seal of the respiratory protection inlet covering against the
face or neck must be assured. This may be difficult to achieve
if the user has a beard or sideburns.
If the user is exposed to very high work intensity, negative
pressure may occur in the hood during inhalation which may
involve the risk of contaminated atmosphere getting into the
respiratory protection inlet covering.
The protection level may be reduced if the equipment is used
in surroundings in which high wind speeds occur.
Be aware that the breathing hose might become tangled and
get caught up by something in your surroundings.
Never lift or carry the equipment by the breathing hose.
Do not soak respirator inlet coverings in cleaning solutions
or solvents.
Do not wipe the respiratory protection inlet coverings with
strong solvents such as MEK, acetone, or toluene as these
may damage or distort materials.
Handling, transportation and disposal of spent batteries,
cartridges, filters or respiratory protection inlet coverings
must comply with all applicable federal, state, and local laws
and regulations.
Failure to understand and observe the above warn-
ings and limitations may adversely affect respirator
performance and result in sickness or death
3. Unpacking, Packing List, Assembly
See also the user instructions for SR 500 Powered Air-Purifying
Respirator.
3.1 Unpacking
Check that the respiratory protection inlet covering is complete
in accordance with the packing list and has not been dam-
aged in transit. Locate the User Instructions and read and
understand prior to attempting to use the product. If damage
is evident or if technical support is needed contact your
supervisor, respirator program manager, User Instructions, or
for technical support call Sundström in the U.S.A. and Canada
at 1- 877- SUNDSTROM.
3.2 Packing List
See also the user instructions for fan unit SR 500.
• Hood
• Head harness with air-duct
• Breathing hose
• User instructions
• Cleaning wipe
3.3 Assembly
See also the User Instructions for SR 500 Powered Air-
Purifying Respirator. Do not attempt to assemble or use
the SR 500 PAPR without reviewing and understanding the
SR 500 PAPR User Instructions. Refer to the NIOSH Approval
Label for approved configuration of components, cautions,
and limitation statements. The NIOSH Approval Label is an
insert provided with the SR 500 PAPR fan unit User Instruc-
tions. Additional copies of the NIOSH Approval Label may be
obtained by contacting Sundström in the U.S.A. and Canada
at 1- 877- SUNDSTROM.
3.3.1 Hood
• Fit the head harness and air-duct into the hood. Fig. 1.
• Pull down the rear part of the hood over the air-duct. Fig. 2.
• Fit the hood into the two fixing grooves on the air-duct. Fig.
3.
• Check that the air-duct´s front locking pin is in the correct
position. Fig 4.
• Fit the breathing hose into the air-duct. Fig. 5.
• Pull down the rear part of the hood to the correct position
over the air-duct/breathing hose. Fig. 6.
3.3.2 Breathing hose
• Connect the breathing hose according to fig. 7.
4. User Training and Operating
Instructions
4.1 Respirator Selection and Training
A written respiratory protection program must be implemented
for occupational use of the SR 500 Powered Air-Purifying Res-
pirator meeting all the requirements of OSHA 29 CFR 1910.134
such as records keeping, training, fit testing, medical evalua-
tion, and applicable OSHA substance specific standards. In
Canada, CSA standards Z94.4 requirements must be met and/
or requirements of the applicable jurisdiction, as appropriate.
Before use, the employer must assure that each respirator user
has been trained by a qualified person in the proper use and
maintenance of the respirator according to the instructions
contained in these User Instructions and other applicable User
Instructions (e.g. SR 500 PAPR, cartridges, filter, etc.).
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