Wow! Thanks for all the replies.

Corey006, thanks for the link. I' ve wondered about the length of effectiveness of the carbon. I' ve had an aquarium most of my life and use the activated carbon in them but have to change it frequently. Interesting!!!

Wonder if a guy just bought regular camo and used the activated carbon spray each time he went out? That way you' d have a fresh dose of it on wouldn' t you?

Again thanks for your help.