A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 16/00 (2006.01)
Patent
CA 2044826
Abstract In a breathing apparatus for toxic or merely irri- tant dust-laden,and hot atmosphere, it is known to have a mask to wear on the face tied on the back of the head. In this invention, there is no mask worn on the face, for comfort in wearability, breathing, vision, good s- peech transmission, and for ventilation. The breathing apparatus has a tube and tubing with holes around placed differently. It hangs on the neck, below the face , a- long and around the body and body parts, connected to a detachable air-supplying filtered source.
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