Abstract: A protective mask includes a transparent impermeable membrane; a frame that substantially surrounds and is coupled to a perimeter of the impermeable membrane and is configured to be positioned about a face of a user; a seal operatively coupled to the frame that seals against a face of the user and extends around a perimeter of the frame, wherein the frame and the seal are substantially impermeable to the passage of air therethrough; an air passageway formed in the frame; and a filter element disposed to filter air passing through the air passageway. The air passageway and the filter element are disposed on a bottom portion of the frame.

Abstract: The present disclosure relates to a protective mask to deactivate damaging agents. In some examples, the mask includes a filter element that traps particles of the damaging agent. A sanitizing emitter permeates the filter element with a sanitizing agent to deactivate the damaging agent. In some examples, the sanitizing agent is ultraviolet light configured to deactivate a virus such as SARS-CoV-2.