It rained a lot in California this past season and now we have all these mosquito and gnats flying around. They infiltrate my garage and we tried other products but this works the best. We bought one for the garage and one to have in the kitchen. Didn’t have big issues in the kitchen but bought as a preventative because the sliding door is always used. Well this even kills the smallest gnats we didn’t even see or realized were around. Luckily not as many but when I wake up in the morning g to see I see a few dead around the lamp and some inside. The size of a pencil dot on paper. Love it…. Also it makes a zap sound when it kills which at first scared me and the kids- now we are used to the sound. My husband loves that sound.