Thermacell Mosquito Repeller Camouflage Brand New Includes One Year Warranty The Thermacell Mosquito Repellent Appliance keeps hunters mosquito-free with scent cover in a 15x15 ft. comfort zone. Repellent mats with Earth scent emit allethrin and the smell of musky dirt and decaying leaves to repel mosquitoes, no-see-ums, black flies and flying insects while masking human odors. Each mat is effective for up to four hours. Each butane cartridge will operate the unit for up to 12 hours. Package includes appliance, one butane cartridge and three repellent mats with Earth scent. Mosquito Repellent Appliance Features Mosquito Repeller Up to 12 hrs Effective Time Ideal for Camping Hunting 15'x15' Mosquito Protection Zone Lightweight Portable Heat Vapor Material Works with All Refills