F2 Full Face Mask User Manual V2.1
12
/
14
E
n
g
lis
h
The
Non-Rebreathing
Valve
closed-to-atmosp
here pressure
1.2 cmH
2
O
Sound
DECLARED DUAL-NUMBER NOISE EMISSION VALUES
in accordance with ISO 4871. The A-weighted sound
power level of the mask is 28 dBA, with uncertainty 3 dBA.
The A-weighted sound pressure level of the mask at a
distance of 1 m is 20 dBA, with uncertainty 3 dBA.
Environmental
Conditions
Operating temperature: +5°C to +40°C (41°F to 104°F)
Operating humidity: 0%
～
93% relative humidity
non-condensing
Storage and transport: -20°C to +55°C (-4°F to 131°F)
Storage and transport humidity: 0%
～
93% relative
humidity non-condensing
Storage
Ensure that the mask is thoroughly clean and dry before storing it for
any length of time. Store the mask in a dry place out of direct
sunlight.
Disposal
The mask does not contain any hazardous substances and may be
disposed of with your normal household refuse.
