Sundstrom SR 900 User manual

SR900 Copyright © 2016 by The S.E.A. Group 1

SR900 Copyright © 2016 by The S.E.A. Group 2
Companion module:
SR900 modular respirator — HOW TO…

SR900 Copyright © 2016 by The S.E.A. Group 3
About your SR900 respirator:
What is it?
The SR900 is a half-face respirator that covers
your nose and mouth, giving you effective
breathing protection using filters or supplied air.
The front of the face-piece has a bayonet fitting
for filters or hoses. The mask body has two
exhalation valves, and a head harness for holding
the respirator securely against your face.
When you breathe in, the air comes into the
mask through the filter or from a source of clean
air. When you breathe out, the air goes out
through the exhalation valves. If your mask is
properly fitted, no outside air leaks into the
mask as you breathe.
What makes the SR900 different?
Unlike other half face respirators, the SR900 has
a modular front attachment that lets you
connect not only filters, but also breathing hoses
leading to supplied air, or a battery-powered fan
unit, or a remote filter holder worn on a waist
belt around your back.
Why modular?
Because the SR900 can be connected to so many
other sources of clean air, it lends itself to many
more work situations and work environments
than a mask that only uses filters.
Single and twin hose
You have a choice of single or twin hose
connection to various devices. You may find the
twin hose even easier to breathe through. On
the other hand, the single hose may be simpler
to keep out of the way as you work.

SR900 Copyright © 2016 by The S.E.A. Group 4
Use without a hose
The simplest connection option is to attach a
filter holder directly to the mask through the
bayonet fitting. In this way, the SR900 works like
any conventional half-face mask with filters.
Connect to SR500 PAPR
Connecting the SR900 to The Sundström SR500
PAPR (Powered Air-Purifying Respirator) makes
the work of breathing easier, as it is the fan unit
— not your lungs — that draws the
contaminated air through the filters.
You can use a single or twin hose to connect to
the SR500 PAPR (with gas or particle filters or
both).
Connect to SR700 particle PAPR
Connecting the SR900 to The Sundström SR700
particle PAPR works in the same way as
connecting to the SR500 PAPR (see above).
However, you can only use particle filters with
the SR700.
Connect to remote filter holder
You may benefit from using the remote filter
holder worn on a waist belt around your back,
away from pollutants, heat, sparks, spray or
splashes that may occur in front of you while you
work.
By using the remote filter holder, you also give
the face-piece a very shallow profile that fits
comfortably inside most welding shields.
Connect face-piece directly to SR507 supplied-
air regulator
Connecting the SR900 respirator to a positive-
pressure air supply from a compressor or pump
raises the protection level significantly.
By using the Sundström SR507 regulator, you can
connect the breathing hose directly between the
regulator on your waist and the bayonet fitting
on the face-piece.
In this configuration, only the single breathing
hose can be used.

SR900 Copyright © 2016 by The S.E.A. Group 5
Connect face-piece to SR307 supplied-air
regulator through filter adapter
Connecting the SR900 respirator to a positive-
pressure air supply from a compressor or pump
raises the protection level significantly.
By using the Sundström SR307 regulator and the
SR900 filter attachment, you can connect the
regulator’s breathing hose to the face-piece
through the adapter.
Does size matter?
The TPE (Thermo-Plastic Elastomer) material in
the mask is so soft and pliable that it will fit
almost anybody. But people’s faces vary in many
ways, not only in size but also in the shape of the
cheekbones, nose and chin.
The SR900 comes in three sizes: Small, Medium
and Large. One of them will fit your head better
than the other and feel more comfortable and
stable on your face.
The mask size may also influence the wear of
other safety equipment, such as spectacles,
goggles, ear muffs and face shields or visors.
Make sure you try on your mask together with
other protective equipment you normally wear.
S
M
L
Where can the SR900 be used with filters?
Your SR900 half face respirator can be fitted with
particle (dust) filters, gas filters, or combined
dust and gas filters. Provided you are using the
correct filters, your half mask can be used for:
•Nuisance dust
•Harmful dust
•Gas and vapour
•Viruses and bacteria
•Mould and fibre
This goes for all configurations where filters are
used with the SR900:
•Filter directly attached to mask
•Remote filter holder
•SR500 PAPR fan unit with gas and/or
particle filters
•SR700 PAPR fan unit with particle filter
only

SR900 Copyright © 2016 by The S.E.A. Group 6
IMPORTANT: filter choice depends on the type
of hazard.
•Particle filters do NOT protect against
gas and vapour.
•Gas filters do NOT protect against
particles.
•Certain gas filters protect ONLY against
certain gases and vapours.
Where should you NOT use the SR900 fitted
with filters?
There are a few situations where your half face
respirator with filters cannot be used. In many of
these situations, filter protection is inadequate,
and you will need an external air supply:
•In oxygen-deficient areas (that is, there
is not enough oxygen in the air for
human breathing)
•Where the atmosphere is Immediately
Dangerous to Life and Health (IDLH)
•Where the concentration of the hazard is
too great to use a half mask or filter
protection according to your local laws
and regulations
Using the SR900 with other breathing devices
For information on other breathing devices such
as PAPRs and supplied-air equipment, please see
separate training modules on those devices.
One mask — one user
Your mask is a personal item. Do not share
masks with others, and always store your own
respirator in a place where it can’t be mixed up
with other masks.
The best way to keep track of your own mask is
to use masks fitted with an ID tag. The tag makes
sure that your mask won’t be mistaken for
someone else’s.
The SR900 is fitted with a slot where you can
fasten a barcode or ID tag.

SR900 Copyright © 2016 by The S.E.A. Group 7
Before fitting the respirator:
•Make sure your face is clean shaven and
washed.
•Check the mask for any damage.
•Ensure that the mask is clean and dry.
•Check that the filter/cartridge is properly
fitted.
•Make sure that you are using the correct
filter/cartridge.
•Perform a leakage test.
Tell your supervisor IMMEDIATELY if…
•you experience any problems breathing
through your respirator.
•you have troubles wearing the respirator
together with other safety gear (hardhat,
goggles, ear muffs etc.)
•you notice any damage to the mask.
•the leakage test doesn’t work.
•you are unsure of use or maintenance of
the respirator.
Watch this on
(using your SmartPhone, tablet or computer)
https://youtu.be/ZQYfQSF53bk