Ultra fine filter for AirSense 11 - 40 pack CPAP replacement filters Designed for Perfect Compatibility: These ultra-fine filters are precisely engineered to for Airsense 11 Series CPAP machines, including the AirSense 11 autoset. The exact fit ensures a hassle-free replacement, maintaining the efficiency of your CPAP therapy.<br> Constructed with Premium Safety Materials: Crafted from superior woven synthetic material, these filters are chemical-free and safe. They provide exceptional performance and optimal air filtration, ensuring that your CPAP machine operates at its best.<br> Advanced Filtration for Cleaner Air: Effectively capture fine particles, dust, pet dander, and other airborne irritants. These filters enhance your breathing environment, allowing you to breathe more comfortably and confidently with cleaner, fresher air.<br> Ease of Use and Regular Replacement: These filters are designed for quick and easy usage and replacement, supporting consistent CPAP therapy with . For optimal performance, replace the filters every two weeks to maintain cleanliness and extend the lifespan of your machine.<br> Color: White<br> Material: cotton<br> Package Contents:<br> 40 * filter<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.