CT of full face respirator from commercial vendor

Scanned to learn about mechanisms of respirators. We will be scanning respirators as they are donated to learn principles of respirator design.

This ventilator takes a cartridge in front which unfortunately we don't have as well as two on the sides. The inflow initially goes into the space around the face shield, presumably to defog. Air then goes through inflow valves into the internal half respirator/mask. The outflow valve is central and inferior.

Видео CT of full face respirator from commercial vendor канала SAVS Volumetric Visualization Laboratory