Are used during open water searches in shallow or deep water masks and snorkels.
How to use the snorkel?
To dive with the snorkel, you just need to wear a mask that allows visibility underwater and keep the snorkel in your mouth to breathe normally. If you dive too deep and water gets into the tube, no problem!
With this information, we can conclude that are used during open water searches in shallow or deep water masks and snorkels.
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