Katch
Contributor
I'm a new diver, so I've been using the same mask I bought for snorkling a couple years ago. The mask has a purge valve and comes in handy getting the water out after I open it up to clear the fog. It seems like the vast majority (by far) of masks at dive shops do not have purge valves. Why aren't there more of those types? Is there a downside to having a purge valved mask?
Steve
Steve