DeVilbiss EasyFit SilkGel Instructions For Use Manual page 37

Quoted two-figure noise emission
value to ISO 4871:
- sound pressure level
- sound power level
- uncertainty factor
Switching pressure for anti-asphyxia
valve
open
close
Service life
Depending on size and variant
1
The materials of the mask will age if they are exposed to aggressive
2
detergents, for example. In individual cases, therefore, it may be necessary
to replace mask parts sooner.
The right to make design modifications is reserved.
®
EasyFit SilkGel Full Face Mask
16.5 dB(A)
24.5 dB(A)
3 dB(A)
 1 cm H2O ( 1 hPa)
 2 cm H2O ( 2 hPa)
up to 12 months
Technical data
2
EN 37