Off! Clip On Fan Circulated Mosquito Repellent, White Starter Kit, 3 Refill Packs Provides mosquito protection without putting anything on your skin Great for backyard, gardening, watching sports, at the beach, camping, at the park. Odorless, No skin application necessary. Use refill within 14 days of opening. Provides up to 12 hours of head to toe protection. Active ingredient 31.2% Metofluthrin.