Description

The diaphragm is extra sensitive for greater amplification and higher frequency response

including damage to the brain

Features a one-way valve that does not allow air to enter a choking victim on the downward motion

based on extensive research and user feedback

non-greasy

Plastic Isolation Mask Set SNS Exclusive The diaphragm is extra sensitiveSet of 2 masks have openings to isolate characters within a chart during a vision test. These isolation masks are constructed of plastic to make sliding over charts a breeze. Set features two masks with different size openings in each (1 2" and 1").

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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Plastic Isolation Mask Set SNS Exclusive The diaphragm is extra sensitive

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