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Firefighter tests mask safety re oxygen/carbon dioxide levels with multiple styles

Land of the Free
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Published on 18 Feb 2021 / In Non-profits and Activism

In just a couple of breaths, breathing through a mask set's alarm off for decreased oxygen/increased carbon dioxide. Using a pulse oximeter also finds a raised heart beat.

Found on Rumble: https://rumble.com/vbb6qb-fire....fighter-tests-mask-s

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2 months ago

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