To block even the smallest of particles, the two-pack of Reusable Foam Filters for IntelliPAP and IntelliPAP 2 CPAP Machines are made of polyurethane foam.
Designed for the IntelliPAP and IntelliPAP 2, these filters are washable and reusable. They should be changed every six months.
Cleaning the Filters
Reusable filters such as these, are meant to be cleaned once every 10 days. For best results use a damp cloth to wipe down each side of the filter, and do not use soap as this can leave an unwanted residue. The filters should be replaced once every 6 months or when the foam begins to break down.