Smells not so much as fart like mildew, but its purpose it misses infrequently. Under no circumstances during spraying remain in the same room that could end badly. The smell is really disgusting and so does the product 1A. I wonder just above the muco-white foam, the spray leaves on Gegensände during spraying. In the end, I can not give 5/5 stars, because that simply appear incongruous in a "fart spray".