This is a pack of HypoAllergenic filters for ResMed S9 CPAP machines. Each filter has two layers: an inner layer that filters out small particles and debris, and an outer layer that blocks bigger materials. Together, the layers work to clean the air around your CPAP machine, ensuring that you're breathing in high quality air so that you can get a great night's rest.
Ideal for patients with allergies, this disposable filter prevents excess pollen and debris from entering your mask.
How wide are these filters?
How many times can I use each filter?
Each filter should last 3-6 weeks; dispose of it when it becomes discolored.