Dressed in full black rubber outfit (raincoat, gloves and hood) I put on my special breath plays gas mask. It has large lenses and two rubber rebreathing bags are attached to the breathing hole. I breath in several times the air contained in the rebreathing bags, I open the little hole in the tube to get fresh air in squeezing the rebreathing bags and so on... Beautiful breathing sounds!

.WMV / 07mn47 / 854x480