unless you keep the outfit hanging in a tree in the back yard they are pretty much useless. they only help contain the odors under the outfit. not the odors that are on the outfit. odors like the fish you had for dinner or the hamburger you cooked the other night or maybe some popcorn or the cleaners under the sink. i guess you are getting the idea. they must be kept away from any unnatural odors. and this is easier said than done.