BREATHING APPARATUS
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United States of America Patent
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Issued Date -
Aug 18, 2016
app pub date -
Feb 12, 2015
filing date -
Feb 12, 2015
priority date (Note) -
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Abstract
[Object of the Invention] An object of the present invention is to provide a breathing apparatus comprising a face piece for covering the whole face or part of the face provided with a hole at each side portion, a motor fan for supplying the face piece with external air, a pressure sensor for monitoring internal pressure of the face piece, a controller for controlling the operation of the motor fan based on a detection signal from the pressure sensor, a filter for purifying the external air supplied to the face piece, and an inhale valve and an exhale valve, wherein filter consumption is minimized.
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