Focer font of knowledge snorkelling

[Flooky]

I would avoid all valves gimmicks etc..Buy a good mask from a dive shop, ( clear silicone is good, lets in loads of light) you need access to be able to hold your nose (clear ears/ equalize ) . just a plain snorkel. (no co2 build up )  if you dive under, as you surface look up, this will clear water by gravity and snorkel will be all but empty at surface. When snorkeling breath out of your nose, this will clear mask with every breathe, even with facial hair. strap needs to be loose, water pressure will keep mask on. I been diving for years ( british sub aqua club, "dive leader ") none of you holiday P.A.D.I. rubbish.