Seago Dry Snorkel is one of the best dry snorkels available in the market.!
It features several devices that help the diver to do not worry about water entry in the tube.
In fact, it has a unique dry top valve that blocks the water entry, even in rough waters.
However, if some water comes inside, it is really easy to expel it,
thanks to the purge valve at the bottom.
Just blow without effort and the water will exit from the snorkel.