For CPAP Machines: Specifically designed for S9 series, AirSense 10, AirCurve 10, and AirStart series CPAP & BiPAP machines. These ultra-fine filters provide a seamless fit and function, enhancing your device's performance. Advanced Filtration Technology: Our CPAP filters are crafted from premium materials that effectively capture dust and particles, ensuring clean air. User-Friendly Design: Easy-to-use replacement filters designed for simple installation and disposal. Free from chemical odors or irritants. Enhanced Breathing Comfort: High-quality CPAP filters help maintain a healthier breathing environment for more comfortable and restful sleep. Color: White Material: Cotton Package Contents: 40 × filter Note: Light reflection and display differences may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.