With a 100% satisfaction guarantee, the Thermacell MR150 Portable Mosquito Repeller makes spending time outside enjoyable without the anguish of bug bites. Turn it on… Mosquitoes Gone. Whether in the backyard or camping in the woods, Thermacell is one of the best mosquito repellents without the smell and hassle of sprays. The lightweight, compact design makes it perfect for the outdoor enthusiast to take on hikes, walks, hunting trips or for a mosquito-free evening in the backyard. With no open flame, this effective mosquito repellant also provides peace of mind. An ideal tool for hunting trips, the Thermacell mosquito repeller keeps mosquitoes away without spray and creates a powerful invisible barrier against mosquitoes. The Woodlands Camo exterior seamlessly blends in. No need for unwanted stickiness or a scent that lingers, this repeller treats the area around you, not your skin. The fuel cartridge and 3 repellent mats provide 12 hours of protection and are easy to replace.