ResMed AirFit F40 User Manual page 9

Cleaning your mask
If there is any visible deterioration of a mask component (cracking, crazing,
tears etc.) the component should be discarded and replaced.
Daily/After each use: Cushion, elbow and short tube, vent ring
Weekly: Headgear, frame
1. Soak the components in warm water with a mild liquid detergent.
Ensure that there are no air bubbles while soaking.
2. Shake the components vigorously in the water and hand wash with a
soft bristle brush. Pay particular attention to the vent holes in the
QuietAir/Multi-hole vent ring.
3. Thoroughly rinse the components under running water.
4. Squeeze the fabric components to remove excess water.
5. Leave the components to air dry out of direct sunlight.
If the mask components are not visibly clean, repeat the cleaning steps.
Make sure that the vents and anti-asphyxia valves are clean and clear.
Reassembling your mask
8