What should you do to prevent a mask squeeze

How To Prevent Mask Squeeze (Advice To Avoid An Eye Barotrauma)

Mask squeeze is easy to prevent by the simple action of breathing out from your nose. This action equalizes the airspace in the mask as the pressures builds up on descent. The time when mask squeeze is most likely to happen is during the first 10 metres (33 feet) of descent. It’s a simple matter of remembering to blow out of your nose in between each nose squeeze to clear your ears on the way down.

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