Feature Highlights: 1. 400-Piece Value Pack – Each bag contains 400 high-quality non-woven fabric filters, offering long-term convenience and cost savings. 2. Precise Fit – Measuring 53 x 35mm, each filter is accurately sized to match your CPAP machine for secure and seamless compatibility. 3. Wide Compatibility – Designed for use with various CPAP models, including AirSense 10, AirCurve 10, and S9 series machines. 4. Advanced Filtration – Made with ultra-fine PM2.5 filter cotton, it effectively captures fine dust particles and airborne pollutants, helping to improve air quality during therapy. 5. Hygienic & Disposable – The white filter material is designed for single use. Regular replacement every 1–2 weeks is recommended to maintain cleanliness and device performance. Product Details: Crafted from premium non-woven fabric, these replacement filters provide reliable filtration while protecting your CPAP machine from dust, dirt, and fine particles. The disposable design helps keep your lungs cleaner and extends the life of your device. Easy to install and replace, they are ideal for maintaining optimal hygiene and air intake quality in your CPAP therapy. Specifications: - Color: White - Material: Non-woven fabric - Size: Approx. 53 x 35mm Package Includes: 400 × Filter Membranes Only the items listed above are included. Other products are not part of the package. Note: Slight color variations may occur due to lighting and screen differences. Size tolerance is within +/- 1–3mm.