Perfect Fit for CPAP Machines: Specifically designed for ResMed S9 series, AirSense 10, AirCurve 10, and AirStart series CPAP & BiPAP machines. These ultra-fine filters ensure a seamless fit and function, enhancing your device's performance. Advanced Filtration Technology: Experience advanced air purification. Our CPAP filters are crafted from premium materials that effectively capture dust and particles, helping to ensure the air you breathe is clean and free from contaminants. User-Friendly Design: Replace filters easily with our convenient replacement design. Engineered for simplicity, allowing quick and hassle-free filter changes. Enjoy clean airflow without chemical odors or irritants. Cost-Effective Solution: Maintain your CPAP machine efficiently with our bulk pack, offering a long-term supply of reliable filters. Enhanced Breathing Comfort: Breathe easier and sleep better with high-quality filtration that helps remove dust and allergens, promoting a healthier breathing environment for more comfortable rest. Color: White Material: Cotton Package Contents: 40 x Filter