ResMed AirFit N20 Mode D'emploi page 14

Dead space
information
Therapy
pressure
Resistance
Environmental
conditions
Sound
Gross
dimensions
International
Commission on
Non-Ionising
Radiation
Protection
(ICNIRP)
Service life
8
Physical dead space is the empty volume of the mask to the end of
the swivel. Using the large cushions it is 103.3 mL.
4 to 30 cm H O
2
Drop in pressure measured (nominal)
at 50 L/min: 0.3 cm H
at 100 L/min: 1.3 cm H
Operating temperature: 5°C to 40°C
Operating humidity: 15% to 95% non-condensing
Storage and transport temperature: -20°C to +60°C
Storage and transport humidity: up to 95% non-condensing
DECLARED DUAL-NUMBER NOISE EMISSION VALUES in accordance
with ISO 4871. The A-weighted sound power level of the mask is
24 dBA, with uncertainty of 3 dBA. The A-weighted sound pressure
level of the mask at a distance of 1 m is 16 dBA, with uncertainty of
3 dBA.
339 mm (H) x 291 mm (W) x 162 mm (D)
Mask fully assembled with the short tube assembly and swivel,
excluding the headgear
Magnets used in this mask are within ICNIRP guidelines for general
public use.
The service life of the AirFit N20 mask system is dependent on the
intensity of usage, maintenance, and environmental conditions to
which the mask is used or stored. As this mask system and its
components are modular in nature, it is recommended that the user
maintain and inspect it on a regular basis, and replace the mask
system or any components if deemed necessary or according to the
'visual criteria for product inspection' in the 'Cleaning your mask at
home' section of this guide. Refer to the 'Mask components' section
of this guide for information of how to order replacement parts.
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2
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