System One, Respironics M Series, and SleepEasy ultrafine, disposable replacement CPAP filters. They are for use with all REMstar M Series CPAPs and BiPAPs, as well as for the Respironics SleepEasy CPAP Machine and Heated Humidifier. Six CPAP filters per pack.
Remember to replace your CPAP filters as recommended by the experts. Disposable CPAP filters should be replaced every 30 days and reusable CPAP filters every 90 days.