These HypoAllergenic Filters are made of non-woven acrylic and polypropylene fibers with a polypropylene carrier. The combination of materials helps block even the very finest of particles from entering your concentrator's air intake ports. They are compatible with all ResMed Mobi Portable Oxygen Concentrators.
Usage Information: Mobi hypoallergenic filters are disposable and should be replaced every 12 months or sooner if there are any holes or blockages in Mobi's air intake caused by dirt or dust. The Mobi oxygen concentrator should not be used without a filter in place. For complete instructions review the documentation that came with your equipment.
Installation Information:A Torx T8 style screwdriver is required to remove and attach the filter cover on Mobi Concentrators.