Abstract: A system and filter apparatus therefore are described for providing substantially bacteria-free, humidified oxygen to a breathing mask or breathing tube. The filter apparatus is hydrophobic and is inserted either at or adjacent the outlet of a humidifier, in the flow line between the outlet of the humidifier and the breathing mask, or at or adjacent the breathing mask, and can be easily replaced when contaminated after a period of use.
Type:
Grant
Filed:
November 3, 1975
Date of Patent:
December 5, 1978
Assignees:
James Frederick Chapel, Homer C. Harper, III, Michael F. Coyne