The kit includes one replacement filter and one replacement check valve for the SoClean 2. The filter cartridge converts activated oxygen back to regular oxygen as it leaves the SoClean 2 chamber. The check valve prevents CPAP water from damaging any of the machines electronics
The filter and check valve should be replaced every six months.
(Please Note: All CPAP devices require submission of a prescription prior to completion of any order. Please email your prescription to firstname.lastname@example.org to complete the purchasing process.)