RESmart Replacement Filter Replacement filter for your RESmart™ CPAP or APAP machine will help ensure your machine continues to function to its full capacity and that you continue to get pure air supplied to your mask. RESmart™ recommend replacing the filter every six months. If it discolours sooner then it is recommended that you change the filter earlier. These filters should be cleaned every two weeks of use to prevent dirt build-up, which can cause the machine to under perform and become damaged. This build up can also be home to bacteria, microbes and fungi which can then enter into your air supply
