With filtration efficiencies over 99.99+% the Hudson 1605 Filter (complete with holders as shown) helps stop the viruses and bacteria that often plague CPAP/BiPAP users creating a clean, sterile environment for airflow. Simply attach the filter to your machine between the air outlet and standard tubing to experience a steady flow of clean, pure, good tasting air. These in-line BV Filters fit most systems including Respironics, ResMed, Covidien, DeVilbiss, Puritan Bennett, and more.
This valve that helps prevent the back flow of oxygen (O2) or water from the patient circuit into CPAP/BiPAP systems when the machine is turned off. It helps protect the system from water back flow -- from the breathing tube or an external humidifier -- which can cause permanent damage to the machine and oxygen back flow which can be a fire hazard.