OFF!® Outdoor Insect Fogger repels and kills flies, mosquitoes, non-biting gnats, small flying moths, multi-colored Asian lady beetles, and other listed insects for up to 6 hours in your outside living space or campsite. Do a backyard pretreat to take back your outdoor space, and keep living life your way. This outdoor mosquito repellent fogger covers an area as large as 30 feet by 30 feet, or 900 square feet. This outdoor bug repellent is a pretreat for the yard, and is suitable for use in outdoor areas, including backyards, patios, decks, campsites and picnic areas.