Detailed Product Description Features:45ml can last for more than one monthIt's effective for using in 15~20 cubic meters.You can use this match the vaporizer in home,hotel,etc.and also can be as a gift sent to friends.pls feel free to contact me!Mosquito Liquid(Mosquito Repellent Liquid,Mosquito Refill Bottle,Fly Killer,Electronic Mosquito Killer)