The Thermacell mosquito control device is an effective and reliable solution to a mosquito problem in yards. It creates a mosquito-free zone of roughly 20 m2 within 10–15 minutes. Thermacell effectively controls mosquitoes, blackflies and no-see-ums. Thermacell is an easy, invisible and nearly scent-free way to control mosquitoes outside of buildings. No need for topical lotions or sprays: Thermacell protects everyone within the zone it creates. Easy to turn on and off. The stylish Mini Halo mosquito control device is an excellent solution for yards, decks and patios at home or at a cottage. Thanks to its timeless design, the device lends itself well to a wide range of environments. Ideal for evening gatherings and makes a great gift for a cottage owner. A mosquito control mat containing prallethrin is inserted into the Thermacell device. The gas heats up the mat, which then releases an active substance that forms a roughly 20 m2 zone of protection around the device. Use Thermacell safely. Read the label and product information carefully and familiarize yourself with the instructions for use. The grill of the Thermacell device heats up and a chemical is used in the device. Use and store the products out of reach of children and pets. Use at a distance from flowering plants. For outdoor use only. The empty Thermacell gas cartridge and mosquito control mat are disposed of as mixed waste/combustible waste in accordance with local guidelines. The mat is empty when the mat’s blue color fades. If the gas cartridges or mats have not been used completely, they should be disposed of as hazardous waste. The package includes the Thermacell Mini Halo device, as well as one gas cartridge and three mosquito control mats for roughly 12 hours of use. Color: graphite gray.