Cpap Mask Filter Adapter

This is an adapter for CPAP masks to be used as a respirator type mask.

This is designed to function with CPAP masks that have 22mm hose attachment point. Should be a press fit but has relief cuts for a ziptie or hose clamp, Recommend using a sealing material between the adapter and the mask hose attach point to make a better seal. Found that a single layer of electrical tape works well.

PETG is the recommended material to be printed with as it is easier to clean/disinfect and slightly more flexible than PLA.

Takes custom filters. Cut square ~44mm with 3mm rounded or chamfered edges. I recommend Carbon coated MERV 16 or HEPA filtering material as they are similar in filtration to N95 respirators. Merv 16 is capable of filtering 85% > 95% of .3 micron material and >95% of 1.0 Micron material.

Filter Fits in the front cover and gets pressed in to the adapter body.

PETG (Polyethylene terephthalate glycol) Is considered food safe by the FDA, is non-porous, and does not