TAL 0110 (L) Rev. 8 - 10020949
DESCRIPTION
DESCRIPTION
The OptimAir MM 2K Mask-Mounted
Powered Air-Purifying Respirator
(PAPR) from MSA is certified by the
National Institute for Occupational
Safety and Health (NIOSH) as an air-
purifying device designed only for use
in atmospheres NOT immediately dan-
gerous to life or health (IDLH).
The OptimAir MM 2K is used with the
Facepiece, which is available in small,
medium or large sizes. If needed,
Advantage
®
4100, Ultravue
®
and Ultra
Elite
®
facepieces may be equipped with
an integral welder’s lens or clip-on
welder’s adapter (only used with
Ultravue facepieces). See
Accessories/Spare Parts.
The motor-blower and replaceable
high-efficiency filter are worn as an
assembly attached to the facepiece.
The rechargeable battery pack is worn
on the support belt. A power cable
connects the belt-mounted battery
pack to the motor-blower on the face-
piece. A battery charger is supplied
with the respirator.
PRINCIPLE OF OPERATION
The motor-blower draws surrounding
air through the filter which captures the
particulate contaminant. Filtered air
passes through to the facepiece and
creates higher pressure than the sur-
rounding atmosphere. Therefore, if a
leak occurs, air will flow from inside the
facepiece to the outside air. This is
referred to as positive pressure. Air flow
also provides wearer comfort.
The rechargeable NiMH battery pack
supplies 4.8 volts (nominal) to the
motor-blower. The battery pack is
replaceable. A fully charged battery is
designed to operate in excess of 8
hours. Then the battery pack can be re-
charged in 3 hours using the standard
charger.
The replaceable filter cartridge which
traps the particulate contaminant is at
least 99.97% efficient against 0.3
micron DOP aerosol.
RESPIRATOR FIT TEST
A qualitative or quantitative respirator fit
test should be carried out for each
wearer of this respirator to determine
the amount of protection it will provide.
Respirator fit tests are explained fully in
the American National Standard for
Respiratory Protection, ANSI Z88.2,
which is published by the American
National Standards Institute, 11 West
42nd Street, New York, New York
10036.
Quantitative Test — If a quantitative fit
test is used, a fit factor that is at least
100 shall be obtained before that respi-
rator is assigned to an individual.
Qualitative Test — If a qualitative fit
test is used, only validated protocols
are acceptable. The individual must
pass a test designed to assess a fit fac-
tor of at least 100.
Powered Air-Purifying Respirators must
be qualitatively or quantitatively fit test-
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