This HEPA Face Mask can be 3D printed or injection molded. The mask is a multi part contruction that allows for small filter elements to be used. The filter assembly can be removed and replaced with an adapter that can turn the mask into a ventilator mask when attached to a CPAP.  The uploaded design in the inital version. Further versions will include an exhalation vent, material for autoclave sterilization and possibly a clear material for the users mouth to be visible to patients with hearing impairments.