Shields feature 1-way valves and mouth-to-mouth barriers. They also secure over the ears for hands-free operation.
![6-Piece Ambu? Res-cue CPR Mask Kit 6-Piece Ambu? Res-cue CPR Mask Kit](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/152958/199700/M573AMBUAC__12382.1477325319.jpg?c=2)
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