With an open valve, this product holds the lips together and allows for easy breathing in and out as needed, but may not eliminate mouth leaks. This valve may be used regularly or to help the user transition to use of the inhalation valve or exhalation valve. Medical-grade hypoallergenic tape. Tabs for easy removal.

 

Please note that the small, medium, and large sizes are only a matter of user preference.

Open Valve

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