Keep your patio bug-free with this powerful Thermacell butane bug repeller. Using gas as a power source, this outdoor device emits a scent-free and DEET-free barrier (4.5m x 4.5m) that repels mosquitoes and other flying insects. Perfect for outdoor use, this patio bug repeller is the ideal solution to keep your outdoor space comfortable and enjoyable. The compact and portable design makes it easy to move around, and the device covers up to 15 feet of space, providing you with an insect-free sanctuary. Say goodbye to pesky insects and enjoy your time outside with this efficient and reliable bug repeller. Come with 1 gas supply and 3 pads AND 4 butane cartridges and 12 more repellent mats. Over 50 hours of protection.