Vitro Naturals Mosquito Repellent Spray does not contain deadly chemicals which kill or knocks down mosquitoes. Mosquitoes detect you by the odors that your body or room emits. New advanced Vitro Naturals Mosquito Repellents uses a formula which masks the distinctive body odor that human skin emits & room odor making you virtually invisible to mosquitoes. It offers protection against mosquito bites. It is a unique formulation based on natural essential oils. It is safe, repels mosquito, small insects and also acts as a room freshener.