ResMed AirFit N30 Guide De L'utilisateur page 9

Pressure-flow curve
Therapy pressure: 4 to 20 cm H
Resistance: Drop in pressure measured (nominal)
at 50 L/min: 0.4 cm H
at 100 L/min: 1.7 cm H
Sound: Declared dual-number noise emission values in accordance with ISO4871:1996
and ISO3744:2010. The A-weighted sound power level and the A-weighted pressure level
at a distance of 1 m, with uncertainly of 3 dBA, are shown.
Power level (with QuietAir Frame): 25 dBA
Pressure level (with QuietAir frame): 18 dBA
Power level (with standard frame): 28 dBA
Pressure level (with standard frame): 21 dBA
Environmental conditions
Operating temperature: 5°C to 40°C
Operating humidity: 15% to 95% RH non-condensing
Storage and transport temperature: -20°C to +60°C
Storage and transport humidity: up to 95% RH non-condensing
Service life: The service life of the 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 'Caution' section of this guide.
Note: The manufacturer reserves the right to change these specifications without notice.
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.
8
0
2
O
2
O
2
Pressure
Flow
(cm H O) (L/min)
2
4 20
8 29
12 37
16 43
20 49