Face mask assembly and method having a fan and replaceable filte

Details Face mask assembly and method having a fan and replaceable filte Face mask assembly and method having a fan and replaceable filte

1992-02-26

1994-12-13

Asher, Kimberly L.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820617, 12820711, A62B 1802, A62B 1808, A62B 1900

Patent

active

053721306

ABSTRACT:
A face mask assembly and method of use having a housing and a replaceable filter mounted in said housing. A fan means draws air into a plenum chamber defined by said housing and said filter for this air to pass into a facial breathing area. An outlet check valve is provided, and a primary filter through which air passes before entering said plenum chamber.

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Advertisement "Light Weight Respirator Mask Has Self-Contained Blower" from Anon Mieux que le casque: l'Aerateur in Rravail et Securite (France), No. 1, Jan. 1963.

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