28
Half Masks
SR 100, SR 90-3 and SR 90-2
EN
1. Introduction
2. Use
3. Donning/Doffing
4. Technical specification
5. Maintenance
6. List of parts
7. Key to symbols
8. Approvals
1. Introduction
The masks are used either as filtering devices
in combination with filters from the Sundström
range, or in combination with the SR 307 com-
pressed air attachment which then serves as a
breathing apparatus with continuous flow for
connection to a compressed air supply.
The Sundström half masks provide respiratory
protection against airborne pollutants, such
as particles, micro-organisms, biochemical
substances, gases/vapours and combinations
of these substances to a user.
The respirators consist of a mask body made
of silicone (SR 100) or TPE, Thermo Plastic
Elastomer (SR 90-2, SR 90-3), that covers the
user’s nose, mouth and chin. It is equipped
with inhalation and exhalation valves, an easily
adjustable elastic head harness designed as a
V-shaped loop that holds the respirator in place
and a filter attachment for connecting standard
Sundström filters.
The inhaled air flows through a filter and inhala-
tion membrane into the mask. The exhaled air
is discharged from the face piece through two
exhalation valves. A wide range of accessories
are available. See section 6, List of parts.
1.2 Warnings/ Limitations
Note that there can be national differences in
the regulations for use of respiratory protective
equipment.
The equipment must not be used
• If you cannot make the mask a tight fit during
the fitting test.
• If the ambient air does not have a normal
oxygen content.
• If the pollutants are unknown or lack ad
-
equate warning properties.
• In environments that are Immediately Dan
-
gerous to Life and Health (IDLH).
• With oxygen or oxygen-enriched air.
• If you find that breathing is difficult.
• If you experience dizziness, nausea or other
discomfort.
• If you smell or taste the pollutants.
• If you experience any other noticeable
physical effect.
• If you have any hair growth between the
skin and facepiece sealing surface such as
stubble, beard growth, beard, moustache,
or sideburns which cross the respirator
surface.
• If scars or other physical characteristics may
interfere with a proper fit of the respirator.
• Caution must be taken when using the
equipment in explosive atmospheres.
If you feel uncertain about the selection and
care of the equipment, consult your work
supervisor or get in touch with the sales outlet.
You are also welcome to get in touch with the
Technical Service Department at Sundström
Safety AB. Use of a respirator must be part of a
respiratory protection program. For advice see
EN 529:2005 or AS/NZS 1715:2009.
The guidance contained in these standards
highlights important aspects of a respiratory
protective device program but does not replace
national or local regulations.
2. Use
2.1 Unpacking
Check that the equipment is complete in ac-
cordance with the packing list, and that no
transport damage has occurred.
2.2 Packing list
• Half mask
• Pre-filter holder
• Test disc
• Cleaning tissue
• ID-tag
• User instructions
