We are having a terrible problem with gnats or " no see ums" attacking us at night. They are getting in right through the screens. We have tried the screen spray, and indoor bug catcher and just purchased an outdoor bug zapper. They are still making it impossible to leave doors and windows open at night. I read that changing your light bulbs to LED helps, we did that too and it's not helping! Any other suggestions? Every morning I am vacuuming them up by the thousands.