Repel 100 Insect Repellent Pump Spray is 100% DEET and will last for up to 10 hours of protection. Repel Pump Spray provides complete protection from mosquitoes, ticks, gnats, chiggers, no-see-ums, and biting flies. For use in areas of high infestation or prolonged periods of outdoor activity. So don't let those insects ruin your camping trip, hike or hunting trip. Get them before they get you!