Cold weather breathing apparatus

Details Cold weather breathing apparatus Cold weather breathing apparatus

1996-10-24

1998-01-13

Millin, V.

Surgery

Respiratory method or device

Means for heating respiratory gas or respiration device

12820113, 12820318, 12820716, A62B 700

Patent

active

057068020

ABSTRACT:
A breathing device including a heat exchanger module retained adjacent the mouth of a user by a fabric holder. The heat exchanger module includes a wall surrounding a non-linear, tubular flow passage extending between a first air vent and a second air vent. A heat exchanging medium comprising a woven copper cloth is disposed within the flow passage. The flow passage includes a larger cross-sectional area adjacent the first air vent than adjacent the second air vent.

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