How long can you stay underwater with a full face snorkel mask?
In most cases, we don’t recommend diving underwater for any more than 2 minutes with a full face snorkel. Even if you are an experienced snorkeler who is going out in perfect conditions, we don’t recommend diving for more than 2 minutes.
How long can you breathe with a snorkel mask?
The snorkel is an aid to breathing, not a breathing aid. It assists you in getting air from above the surface of the water. It does not possess any breathing advantages. The average person can hold their breath for between 45 seconds to 2 minutes depending upon their level of fitness.