The full masks are ok for beginners but you wont be able do dive under so you would be restricted to the surface. Just stick with a snorkel and mask it’ll come to you pretty rapid
Not true. That one pictured from Decathlon has a floating valve that closes when you dive under water.
Valves more for splashes/waves or very very shallow dives.
Its more about equalizing ear pressure and below is from Decathlon site….
I think they are great but if you want to go deeper and explore more you will be limited.
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SOME ADVICE FOR USE
– The Easybreath has been designed for adults and children over 10 years old.
– Choose the right size to ensure that the mask is tight.
– Choose a low intensity snorkeling trip to avoid excessive breathing.
– Do not free dive : the Easybreath mask is only designed for the surface