Effective Protection: Thermacell Portable Mosquito & Multi-insect Repeller creates a 15-foot zone of protection against mosquitoes and a 10-foot zone of protection against black flies and no-see-ums. Use camping, fishing, hunting, boating and more.

Heat-Activated Technology: No cords or batteries. Emits scent free repellent that drives away mosquitoes, black flies, and no-see-ums. Powered by a safe and compact 12-hour fuel cartridge.  Not intended for other insects – only effective against mosquitoes, black flies and no-see-ums.

Long-Lasting Defense: 24 hours of repellent and fuel included. Multi-insect repellent mats (6 included) last up to 4 hours each and fuel cartridges (2 included) last up to 12 hours each.

Plant-Inspired Repellent Formula: Independently tested and EPA reviewed for safety & effectiveness. Our prallethrin formula is inspired by repellent extracts found in plants. People and pet friendly.