The Thermacell Patio Shield Mosquito Repeller effectively repels mosquitoes by creating a 15-foot zone of protection. This compact, easy-to-use and stylish device will look great on any patio or deck while it works to keep pesky mosquitoes from biting and bothering your guests. Product Features SCIENTIFICALLY PROVEN: Thermacell is tested and proven to repel mosquitoes from a 15-foot zone with heat-activated repellent that won t weaken over time. CONTINUOUS OUTDOOR PROTECTION: The device delivers continuous outdoor protection powered by a safe and compact 12-hr fuel cartridge. EASY TO USE, NO SPRAY NEEDED: On-demand mosquito repellent starts heating with the push of a button, reaching max protection in 15 minutes. Repellent is scent-free, DEET-free and no smoke. PEOPLE & PET FRIENDLY: Thermacell is independently tested and EPA reviewed for safety and effectiveness around people and pets. 100% SATISFACTION GUARANTEE: Thermacell offers a satisfaction guarantee covering repairs, replacements, or refunds. Customers can contact [email protected] support. INCLUDES: One repeller, one 12-hour fuel cartridge, and three 4-hour repellent mats. *For Outdoor Use Only