Technical Specifications - ResMed AirFit F20 User Manual

Technical specifications

Pressure-flow curve
Dead space: Empty volume of the mask to the
end of the swivel. The mask deadspace varies
according to cushion size.
Therapy pressure
Resistance with Anti Asphyxia Valve (AAV)
closed to atmosphere: Drop in pressure
measured (nominal)
at 50 L/min
at 100 L/min
Resistance with Anti Asphyxia Valve (AAV)
open to atmosphere
Inspiration at 50 L/min:
Expiration at 50 L/min:
Anti Asphyxia Valve (AAV) open-to-
atmosphere pressure
Anti Asphyxia Valve (AAV) closed-to-
atmosphere pressure
Sound: DECLARED DUAL-NUMBER NOISE EMISSION VALUES in accordance with
ISO 4871. The A-weighted sound power level and the A-weighted sound pressure level of
the mask at a distance of 1 m, with uncertainty of 3 dBA, are shown
Power level (with Standard elbow)
Power level (with QuietAir elbow)
Pressure level (with Standard elbow)
Pressure level (with QuietAir elbow)
The mask contains passive venting to protect against
rebreathing. As a result of manufacturing variations, the vent
flow rate may vary.
AirFit F20
240 mL (Large)
3 to 40 cm H O
2
0.2 cm H O
2
0.6 cm H O
2
0.6 cm H O
2
0.7 cm H O
2
≤3 cm H O
2
≤3 cm H O
2
30 dBA
21 dBA
22 dBA
13 dBA
Pressure Flow
(cm H O) (L/min)
2
3 19
10 37
16 48
24 60
30 69
40 82
AirTouch F20
281 mL (Large)
3 to 40 cm H O
2
0.2 cm H O
2
0.6 cm H O
2
0.6 cm H O
2
0.7 cm H O
2
≤3 cm H O
2
≤3 cm H O
2
30 dBA
21 dBA
22 dBA
13 dBA
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