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Hoods SR 520/SR 530, Face Shield SR 540
Table of Contents
1
2
3
3.1
3.2
3.3
4
4.1
4.2
4.3
4.4
5
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7.
8
9
1. General information
The SR 520 and SR 530 Hoods, SR 540 Face Shield and
SR 580 Helmet can be used together with the SR 500 Powered
Air-Purifying Respirator system of components to provide
respiratory protection against certain particulates, organic
vapors, acid gases and other inorganic gases.
NIOSH Approval Label for a list of approved components
and NIOSH cautions and limitations. Before use, these user
instructions and those for the SR 500 PAPR, cartridges, filters
and compressed air attachment must be thoroughly studied
and understood.
Breathing air is supplied to the respiratory protection inlet
covering (e.g. hood, face shield, helmet) from a breathing hose
connected to the fan unit containing the appropriate canisters
or filters. The pressure generated in the hood or face shield
prevents particles and other pollutants from entering. The hood
or face shield can be used in all situations for which an air-
purifying respirator is recommended. This applies particularly
to work that is hard, warm or of long duration.
SR 520 and SR 530 Hoods
The SR 520 and SR 530 hoods protect the respiratory organs
and the crown of the head. They contain an impact-resistant
and chemical-resistant visor. The supply air keeps the hood
visor demisted. An adjustable head harness allows for fit
adjustments to improve fit and comfort. The flexible breathing
hose is permanently mounted to the hood. The SR 520 and SR
530 hoods are equipped with an exhalation valve that improves
comfort and reduces the buildup of carbon dioxide.
4
and Helmet SR 580
Refer to the
The SR 520 hood is available in two sizes, and the SR 530 hood
is available in one size. Additionally, the SR 530 also protects
the head and shoulders, is equipped with adjustable neck fit,
and the distance between the visor and the face is adjustable.
SR 540 Face Shield
The SR 540 face shield protects the breathing zone, the crown
of the head and eye protection (ANSI Z87.1-2010) protection.
It contains a hinged visor unit and scratch resistant and
chemicals resistant polycarbonate visor. The supply air flow
keeps the visor demisted. An adjustable head harness allows
for fit adjustments to improve fit and comfort. The flexible
breathing hose is replaceable. The face shield is equipped
with an exhalation valve that improves comfort and reduces
the buildup of carbon dioxide. The face shield is available in one
size and offers optional PETG visor, peel-offs and head-cover.
SR 580 Helmet
The SR 580 helmet protects the breathing zone and provide
limited head (ANSI Z89.1-2009 Type 1 Class G) and eye (ANSI
Z87.1-2010) protection. It contains a hinged visor unit and
scratch resistant and chemicals resistant polycarbonate visor.
The supply air flow keeps the visor demisted. An adjustable
head harness allows for fit adjustments to improve fit and
comfort. The flexible breathing hose is replaceable. The face
shield is equipped with an exhalation valve reduce the build up
of carbon dioxide. Equipped with standard fastener that allows
the use of hearing protection. The helmet is available in one
size and offers optional peel-offs and heat protection, welding
shield and welding protection.
Limitations
• If the face seal is not firmly in contact with the face, the
pressure necessary for maintaining the correct protection
factor will not be established.
• If the user is exposed to very high work intensity, a partial
vacuum may occur in the device during the inhalation phase,
which may involve the risk of leakage into the head-top.
• The protection factor may be reduced if the equipment is
used in surroundings in which high wind speeds occur.
• The seal of the head-top against the face must be assured.
This may be difficult to achieve if the user has a beard or
sideboards.
• Be aware that the breathing hose might make a loop and
get caught up by something in your surrounding.
• Never lift or carry the equipment by the breathing hose.
2. Safety Precautions
The user must read and follow all User Instructions supplied
with the SR 500 Powered Air-Purifying Respirator, respiratory
protection inlet coverings, canister, filter or supplied air equip-
ment. Incorrect operation of the SR 500 PAPR or supplied air
system could result in reduced airflow, interruption of airflow
to the respiratory protection inlet covering or contamination of
breathing air. For proper use: see supervisor, respirator pro-
gram manager, User Instructions, or for technical support call
Sundström in the U.S.A. and Canada at 1- 877- SUNDSTROM.
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