Flytraps are intended, primarily, for outdoor use -- the goal is to draw flies away from the home. Place several fly traps around the outskirts of the home, 10-30 feet from home -- you will no longer have big fly problems inside the home.
Bait requires an activation period of 24 hours before it becomes fully effective.
It is important to keep bait moist by adding water to the trap regularly.
Flies search low - place fly traps 18 inches or less from the ground.
Flies like heat, light, low wind - place fly traps in sunny areas.