The Thermacell Patio Shield Mosquito Repeller in Graphite delivers reliable, no-hassle bug protection without sprays, scents, or messy setups. Designed with a compact, modern look, it creates a 15-foot zone of defense to keep mosquitoes away so you can actually enjoy your time outside. It runs on a fuel-powered system that heats repellent mats—no open flame, no smoke, and no need to apply anything to your skin. Each unit comes ready to go with a 12-hour fuel cartridge and repellent mats that provide up to 12 hours of total coverage. Built for patios, campsites, and any outdoor setup, it’s an easy, low-maintenance solution for staying protected. The unit measures 3.4” x 3.4” x 6.5” and uses D-cis/Trans Allethrin as its active ingredient. Includes one repeller, three 4-hour repellent mats, and one 12-hour fuel cartridge. For outdoor use only.