Designed for perfect compatibility These ultrafine filters are precision engineered for the Airsense 11 series CPAP machines, including the AirSense 11 autoset. The exact fit ensures a hasslefree replacement and maintains the effectiveness of your CPAP therapy.Constructed with premium safety materials Made from superior woven synthetic material, these filters are chemicalfree and safe. They provide exceptional performance and optimal air filtration, ensuring your CPAP machine operates optimally.Advanced Filtration for Cleaner Air Effectively capturing fine particles, dust, pet dander and other airborne irritants, these filters improve your breathing environment, so you can breathe more comfortably and safely with cleaner, fresher air.Easy to use and replace regularly These filters are designed for quick and easy use and replacement, supporting consistent CPAP therapy. For optimal performance, replace the filters every two weeks to maintain cleanliness and extend the life of the machine.Color WhiteMaterial cottonPackage contents40filterOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13 cm.