Steiner ThermaCell Mosquito Repellent Outdoor Lantern

ThermaCELL® Mosquito Repellent Lanterns are powered by a single butane cartridge. The butane provides the cordless, portable heat that activates the devices.The heat generated by the butane cartridge is directed to a metal grill that is part of the design of the Lantern. A small mat, saturated with repellent, sits on top of the metal grill. Heat vaporizes the repellent, allowing it to rise into the air. The repellent is allethrin, a copy of a repellent that naturally occurs in chrysanthemum flowers. It repels up to 98 percent of mosquitoes, black flies, and no-see-ums, and will not harm humans or pets. Within minutes after turning on the Lantern, the repellent creates a 15 by 15-foot (225 square-foot) mosquito-free zone, the size of an average deck, patio, or campsite. All ThermaCELL Mosquito Repellent products use the same refills, which contain both repellent mats and butane cartridges.

A unique, patented technology that the Environmental Protection Agency (EPA) evaluated for safety and effectiveness, the ThermaCELL® Mosquito Repellent system is the most effective area mosquito repellent available to consumers, according to the Walter Reed Army Institute of Research, in Washington, D.C.