Do DRY SNORKELS really work?

Question

What brand or model do you have? Does it block all water when submerged?

Answer 1

Dry snorkers work about as well as wearing flip flops in water and not expecting your feet to get wet.

Answer 2

they generally work, usually you still get a small amount of water in your snorkel when you submerge, but not nearly as much as a normal snorkel.  They are good for beginners but you should learn how to clear a normal snorkel it isn't hard with a little practice and they cost much much less to buy.