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What is a “First Breath” donning feature?

April 26, 2017donning feature

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What is a “First Breath” donning feature?

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First Breath is a feature that allows the user to stop the flow of air while donning and removing the SCBA. Air will start to be delivered to the user when there is a negative pressure inside the facepiece – when the “first breath” is taken by the user.