Universal Fit: Designed for major CPAP models including for AirSense 10, AirCurve 10, S9 series, and compatible with BiPAP machines. These filters a snug fit for both 22mm and 25mm tubing, providing a seamless user experience. Superior Filtration Quality: Crafted from high-grade pure cotton, these disposable filters excel in trapping harmful particles such as dust and pollen. Replace every two weeks to maintain their high-efficiency filtration capabilities and fresh air flow. Enhanced Air Purity: Achieve better sleep quality through high-efficiency filtration that not only captures dust and pollen but also significantly reduces airborne impurities. Each filter maintains its performance for up to 15 days, promoting consistent air purification. Easy Setup & Improved Sleep: Effortlessly install these filters with simple slide-in and connect mechanisms. Protect your CPAP machine from debris, extend its lifespan, and enjoy uninterrupted, deep sleep with cleaner, fresher air. Color: Transparent & White Material: plastic Package Contents: 10 x premium filter cotton 10 x universal inline CPAP filters Only the above package content, other products are not included. 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.