Full face mask pull my chin during diving and jaw fatigue

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cooltreedan:
thanks, but if I loosen the top straps a bit, I can feel small bubbles leaking, up from my head, even useing a FFM hood, so is that means FFM is better to be used in troppic without hood?
Click to expand...
Usually, you can control the leaking at the top with the middle straps. The top straps are mostly just there to keep the mask from sliding down. We do not use our FFMs with hoods so I can't help you there.
 
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