Portable air filtration device

Details Portable air filtration device Portable air filtration device

A - Human Necessities

61

M

137/1.5

A61M 16/00 (2006.01)

Patent

CA 1188193

ABSTRACT There is provided a portable breathing assist comprising an external housing and an internal scroll housing within the external housing. The scroll housing has a central inlet for air and a tangential outlet for air. A radial impeller is rotatably mounted within the scroll housing for moving air from the inlet to the outlet, and an electrical motor within the external housing but outside the scroll housing rotates the impeller. An air manifold within the external housing is provided to define a passageway for air from at least one opening to a central inlet, along which air can travel without encountering the electrical motor. Filter means are provided at the at least one opening.

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