Seeing well underwater is essential, especially for freediving. But in addition to the field of vision, an important criterion in the choice of a freediving mask is its internal volume. In fact, the more compact the mask, the less the diver will need to equalise its internal pressure during the descent. In addition, Beuchat freediving masks are specially designed to simplify equalizing manoeuvres using the nostrils.
Beuchat freediving masks are fitted with non-allergenic watertight skirts made of silicon or black rubber, to avoid lateral reflections.
The comfort and ergonomics of the mask are essential: it must fit the face naturally, without causing discomfort. To test both adherence and comfort, position the mask on your face without using the strap to hold it in place. Take care to keep your hair outside of the mask. Then breathe in through your nose. If the mask is the right size, the suction effect will cause it to stay in place and it will only come off when you breathe out.
The use of a snorkel is recommended if you want to swim easily on the surface while keeping your head underwater. You may prefer a flexible mask to avoid it catching on rocks.