Weinmann JOYCE SilkGel vented Instructions For Use Manual page 37

Quoted two-figure noise emission
value to ISO 4871:
- sound pressure level
- sound power level (uncertainty
factor: 3 dB(A))
Switching pressure for emergency
exhalation valve (vented variants)
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.
9.1 Materials
Mask part
Plug for pressure measurement
connections
Mask cushion, forehead cushion
Mask body, elbow
Retaining ring, emergency exhalation
valve
Nasal mask
15 dB(A)
23 dB(A)
The right to make design modifications is
reserved.
--
--
up to 12 months
Material
Silicone
Silicone and silicone gel, silicone
coating
Polycarbonate
Polypropylene,
TPE
JOYCE SilkGel
Technical data
Full-face mask
16.5 dB(A)
24.5 dB(A)
≤ 1 hPa
≤ 2 hPa
2
EN 35