Replacement double-strip fibre filters. Not washable. Pack of 50 filters (50 pink and 50 yellow, for 100 filter strips total) for machines equipped with a removable filter case or for machines with a removable air filter cover.
The air filter strips should be replaced every six months. If your flow generator (CPAP machine) is in a dusty environment, the air filter strips should be replaced every three to four months. This will help to ensure that the air you breathe is always clean.
Note: Do not attempt to wash the air filter strips. Washing will cause damage and the filter strips will not work properly.