Feature: 1. Super Clean Air: These filters help capture particles as air exits the CPAP or BiPAP machine and work with the machine's built-in filtration system to provide cleaner air throughout the night. 2. Disposable Filters: Replace every 4–6 weeks on average, or sooner if the filter appears discolored or dirty, depending on your environment. 3. Suitable for Allergy Sufferers: Designed for sleep therapy users who are sensitive to airborne particles. 4. Maintains Airflow: Low airflow resistance helps maintain the consistent pressure delivered by your CPAP or BiPAP device. 5. Easy Installation: Simply place the filter between the air outlet of the machine and the standard CPAP tubing for quick setup and replacement. Specification: Name: Bacterial Filter Color: White Material: Environmentally friendly material Intended Use: Particle filtration Packing List: 1 x Bacterial Filter Note: Please allow 1–2 cm error due to manual measurement. Due to differences in monitor displays, the actual color may vary slightly from the image.