Sundstrom SR 900 User manual

2020-10-05
OI01H-3021 SR 900 1
Operating Instruction
SR 900
Half mask APR
Revision: 03

General information
Instructions for use for SR 900 APR should be read before use.
Together with filters from the Sundström filter range in accordance with the NIOSH approval label.
Three sizes S, M and L.
Together with powered air-purifying respirator SR 500 PAPR in accordance with NIOSH approval label.
Together with Remote filter holder SR 905 according to NIOSH approval label.
When selecting equipment for SR 900 some of the factors that should be taken into account are as follows:
• Type of pollutant
• Concentrations
• Work intensity
• Protection requirements in addition to respiratory protective advice.
Risk analysis should be carried by a person who has suitable training and experience in the area.
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Unpacking SR 900
Check that the equipment is complete in accordance
with the packing list, and that no transport damages
have occurred.
Packing list:
• Half mask
• Pre-filter
• Pre-filter holder
• Cleaning tissue
• ID-tag
• User instructions
• Storage bag
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1. Filter
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1.1 Check that you have
selected the correct filter.
1.2 During work in
atmospheres containing both
particles and gases/vapors
(such as spray painting) the
particulate filter and chemical
cartridge should be
combined.
1.3 Place the P100 filter on
top of the cartridge. Grasp
both protective elements.
Squeeze hard until you hear
the P100 snap onto the
cartridge a snap.Attempt to
pull the filter and cartridge
apart to check that they are
properly connected.
1.4 Place a coin it in the
space between the lower lip
of the particulates filter and
the small tab molded into the
side of the cartridge.
Push firmly and twist the coin
until the filter pops off.

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1.5 Fit the filter/combined
filter in the mask so that the
arrows on the filter point
towards the user’s face.
Carefully check that the edge
of the filter is in the internal
groove of the filter mounting
all around
1.6 Fit pre-filter SR 221 in the
pre-filter holder.
Pre-filter prevents premature
clogging of the main filter.
The pre-filter holder prevents
damage to the main filter.
N.B. The pre-filter is a pre-
filter only and cannot be used
as a substitute for particulate
filter P100.
1.7 Press it into place on the
filter.
1. Filter