I am in the baby shampoo camp! 1:1 diluted!
Also, it also depends on the mask!! I got an cheap aqualung mask that just fogged up like hell !! My instructor recommended me getting a cressi bigeye as in a real diver mask vs snorkeling type of mask. This made a huge different! In combination with the spray... I never have a fogged mask again, during ANY point of the dive. Works like a charm!
Also, it also depends on the mask!! I got an cheap aqualung mask that just fogged up like hell !! My instructor recommended me getting a cressi bigeye as in a real diver mask vs snorkeling type of mask. This made a huge different! In combination with the spray... I never have a fogged mask again, during ANY point of the dive. Works like a charm!