Provides effective protection against mosquitoes and other small flying insects. Effective even with the windows slightly open and the lights on. It also kills mosquitoes already hiding in the room. Features: Protection for 45 nights (refill) Low energy consumption RAID® fragrance free See also the other products of the Raid brand, which you can find in the Drugstore, Protection against insects and Repellents categories. If you are not sure that you have chosen this product, get inspired in the Repellents category.