Keep your campsite clear of pesky mosquitoes with these Thermacell Original Mosquito Repellent Refills. Featuring an odor-free and DEET-free formula, these Thermacell Original Mosquito Repellent Refills effectively repel mosquitoes by creating a 15' zone of protection when used in fuel-powered Thermacell refills. Ideal for use while you are camping, hunting, fishing, gardening, and around the backyard. Odor-free and DEET-free formula Creates a 15' zone of protection Fuel-powered refills are ideal for camping, etc.