Usage Tips: 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: Experience advanced air purification. Our CPAP filters are made from high-quality materials that effectively capture dust and particles, helping ensure the air you breathe is clean and free from contaminants. User-Friendly Design: Replace filters easily with our convenient replacement design. Engineered for simple installation and disposal, allowing for hassle-free maintenance. Enjoy clean airflow without chemical odors or irritants. Cost-Effective Solution: Maintain your CPAP machine efficiently with our value pack. Provides a long-term supply of reliable filters, helping you avoid unexpected shortages. Enhanced Breathing Comfort: Breathe more comfortably and support better sleep with our CPAP filters. Designed to help reduce dust and particles, contributing to a cleaner breathing environment for more restful sleep. Note: The actual product may vary slightly in color, which does not affect performance. Color: White Material: Cotton Package Contents: 40 x Filter Packaging includes only the items listed above; other products are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.