Perfect Compatibility: Designed specifically for Airsense 11, these CPAP filters offer a precise fit, enhancing machine performance and simplifying maintenance. Each filter is crafted for easy installation, providing a hassle-free replacement experience. Enhanced Air Quality: Experience cleaner, healthier air with ultra-fine filters. Engineered to trap microcontaminants effectively, these filters are denser and thicker than standard options, offering superior protection against airborne particles and ensuring optimal air quality. Convenient and User-Friendly: Tailor-made to fit seamlessly with Airsense 11, making replacements quick and effortless. The design focuses on user convenience, allowing easy maintenance of your CPAP machine for continuous, effective operation. Color: as shown in the picture Material: cotton Package Contents: 60 * filter 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.