Cold weather respiratory mask

Details Cold weather respiratory mask Cold weather respiratory mask

1982-06-01

1984-07-10

Recla, Henry J.

Surgery

Respiratory method or device

Inhaled gas heated or humidified by exhaled gas

12820525, A61M 1500, A62B 700

Patent

active

044586795

ABSTRACT:
A mask for use in severe arid climates which includes a countercurrent exchange medium, confined within a mask shell, which salvages heat and moisture given off during exhalation for subsequent transfer to inhalation air. A shaped mask member forms the mask to fit snugly over the lower face and nose. A normally closed opening in the mask shell permits access to the mask interior and to the countercurrent exchange medium. Tubular inserts provide supplemental quantities of the medium as well, in a modified form, provide an interface for additional respiratory gear.

REFERENCES:
patent: 1418182 (1922-05-01), Tabor
patent: 3326214 (1967-06-01), McCoy
patent: 3814094 (1974-06-01), De Angelis et al.
patent: 4196728 (1980-04-01), Granite
patent: 4200094 (1980-04-01), Gedeon et al.
patent: 4325365 (1982-04-01), Barbuto

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