Feature: 1. Super Clean Air: These filters help capture impurities in the air as it exits the CPAP or BiPAP machine and work with the built-in filter system to provide cleaner air throughout the night. 2. Disposable Filters: Mars Wellness filters typically last 4–6 weeks, but replacement frequency may vary depending on environmental conditions. Replace the filter when the white material becomes discolored or dirty. 3. Suitable for Allergy Sufferers: These CPAP/BiPAP filters are a good option for sleep therapy users who are sensitive to airborne particles. 4. Maintains Strong Airflow: Designed with low airflow resistance to help maintain consistent airflow from the CPAP/BiPAP machine. 5. Simple Installation: Bacterial filters for CPAP/BiPAP are easy to install and replace. Simply place the filter between the machine’s air outlet and the standard CPAP tubing. Specification: Name: Bacterial Filter Color: White Material: Environmentally friendly material Uses: Air 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 image may not reflect the actual color of the item.