Importance

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Abstract

The humidity exchanger for a breathing apparatus and a conduit for the passage of inspiration and expiration air comprises a housing having an opening at each end and with a bundle of fiber tubules extending longitudinally through the housing and embedded at respective ends in packing so as to define a space within the housing around the tubes. Inspiration air is directed upwardly through the tubes past a non-return valve and out through a fitting which also forms a passage for the expiration air. The fitting also extends in communication with an inlet for the tube chamber, the space in the housing around the tubes and between the packing. An outlet is also provided for the chamber around the tubes which extends out to atmosphere.

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First Claim