Zodiac Fleatrol Fogger in the ecconomical 3 pack. Fast acting formula kills fleas, ticks, cockroaches, ants, spider, mosquitoes and silverfish on contact. Kills flea eggs and larvae up to 7 months. Three pack treats 2,500 sq. ft. However, mist goes up and comes down. It does not go around corners. You will need a fogger for every room. Also, you will need to spray under surfaces such as tables and chairs. Follow up with a spray treatment 7 to 10 days later.