Divers!

I went and looked up regulator at dictionary.com and this is one of the definitions it gave me... ~a device on scuba equipment for regulating the rate at which compressed air is fed through a breathing tube in proportion to the depth of water. I'm not sure if that's the actualy mouth piece or not, this definition is kind of complicated lol! To me it sounds like it is something that helps the oxygen tank give the air to the mouthpiece...but I don't know! =P You def. know you scuba stuff either way!

100% of what I know about scuba stuff comes from TV. I once TOUCHED an air tank....

Well. I know nothing about scuba diving or the equipment! And I have never touched anything related to it! hehe. That's why i needed help finding the answer else where! =P