for CPAP Machines: Specifically designed to for S9 series, AirSense 10, AirCurve 10, and AirStart series CPAP & BiPAP machines. These ultra-fine filters a seamless fit and function, enhancing your device's performance. Advanced Filtration Technology: Experience the ultimate in air purification. Our CPAP filters are crafted from premium materials that excel in capturing dust and particles, ensuring the air you breathe is exceptionally clean and free from contaminants. User-Friendly Design: Change filters effortlessly with our easy-to-use replacement filters. They are engineered for simplicity, allowing you to replace or dispose of them without hassle. Enjoy a breath of fresh air without any chemical odors or irritants. Cost-Effective Solution: Keep your CPAP machine running efficiently without breaking the bank. Our bulk pack offers significant savings, providing you with a long-term supply of quality filters, so you never have to worry about running out unexpectedly. Enhanced Breathing Comfort: Breathe easier and sleep better with our high-quality CPAP filters. They not only filter out dust and but also contribute to a healthier breathing environment, making your rest more comfortable and rejuvenating. (The actual product may have slight color difference or difference, which not affect the use) Color: White Material: cotton Package Contents: 40 * 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!