Astral Inlet Filter ResMed 4-Pack 27939

Astral Inlet Filter ResMed 4-PackReplacing the air filterInspect the condition of the Astral inlet filter and check whether it is blocked by dirt or dust. With normal use, the air filter needs to be replaced every six months (or more often in a dusty environment).Do not wash the air filter. The air filter is not washable or reusable.To remove and replace the air filter1. Unlock the air filter cover by turning in an anti-clockwise direction.2. Pull the air filter cover from the device.3. Pull the