The replacement Diffuser Filter for the Eson 2 Nasal CPAP Mask is a clear plastic cap that sits on top of the mask elbow and is designed to help quiet your CPAP device as air leaves the mask. The Eson 2 Nasal CPAP Mask Diffuser Filter is made of eco–friendly fibrous fabric and should be replaced once it becomes discolored or damaged. Find all compatible parts listed here on the ESON 2 Nasal Mask Parts page. General Tips Section The diffuser filter is attached to a clear plastic cap which connects at the top of the mask elbow. Cleaning Tips Wash the filter at least once per week in warm water with mild soap. Do not exceed 10 minutes. Rinse with fresh water until all soap residue is gone and allow to air dry away from direct sunlight. If the cap cracks or the filter comes lose, replace the diffuser filter. 400ESN261
