ResMed AirSense™ 11 Filters are like the guardians of clean air for your CPAP machine, and it's important to keep them fresh. You should change them when they get dirty or about once a month.
There are two types:
1. The standard filter catches big things like pet hair and dust. Your machine usually comes with one of these.
2. The hypoallergenic filter is a special one. It's like a double-sided protector. It stops tiny particles on one side and keeps out bigger stuff on the other.
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