Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 3, 2008
Patent Application Number
10933555
Date Filed
September 3, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
An improvement to a combination of an SCBA system for providing bottled air to a user and a PAPR system for purifying ambient air for use by a user wherein a sensor is included to determine the oxygen content of the breathing gas and the presence of contaminations in the atmosphere to control operation of the two systems depending on the contaminated condition of the ambient air and the oxygen content of the ambient air.
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