Shop our wide selection of replacement CPAP supplies for your mask or machine. The average lifespan of your CPAP accessories can range from 1 to 12 months based on care and maintenance. Regular therapy is important for those who are suffering from sleep apnea and other sleep disorders. It is crucial to replace frequently used CPAP supplies, such as filters, tubing, cushions, and water chambers, to prevent the growth of bacteria and other harmful microorganisms. Over time, dirt and oils from the skin can accumulate on these devices, which affects hygiene.