Many people have mixed opinions about these masks. The fact is however that there to date has been no conclusive evidence as to the exact hazard, if any, associated with these masks. Some say to purchase only certain manufacture’s models and to avoid the inexpensive models. Honestly, we don’t know the answer to any of these questions. Time will tell, but even today (May 29th, 2019) another incident occurred in Hawaii regarding a lady using such a mask who was pulled from the water unconscious but was taken alive to the hospital after being found unresponsive in the water, face down.
We bring this to your attention so you can form your own opinion. As with any new technology, time will often provide the answer but until then, you are in the general population that will decide the answer on a future statistical chart. Please be advised, and examine the continuation of evidence as it continues be acquired.
You can visit all the snorkel tour options that are available by Tom Barefoot’s Tours on Maui, Oahu, Kauai and the Big Island.