The Breas HDM Disposable Filters for Z1 and Z2 Travel Auto CPAP Machines -4 pack are designed specifically for the Z1 and Z2 Travel Auto CPAP Machines. The length, width, and height are designed to fit the filter compartment of only these devices. The filters help reduce the chance of air pollutants entering into the users airflow, providing the user with the highest quality of air pressure as possible.
These filters are disposable and should be replaced monthly. Depending on the user’s environment, the filter may need to be replaced more frequently.