Nose Jammer creates a cloud around you which jams big game's ability to detect and track human odor. Nose Jammer should be sprayed on clothes, boots, tree stands, blinds and brush. When the wind swirls, critters olfactory gets jammed and they stay unalarmed. Nose Jammer is most effective when the complete Nose Jammer system is used for hunting. Works on all critters with a nose!