The Thermacell Patio Shield creates a 15-foot zone of protection by heating a repellent-infused mat. It uses a small butane cartridge to power a ceramic heating plate, which sublimates the active ingredient into the air. This design is scent-free and avoids the need for any skin-contact sprays, making it a favorite for those with sensitive skin.
The unit is constructed from high-impact polypropylene, which is built to handle the heat of the internal burner. For best results, the device needs a 10-to-15-minute warm-up period to establish the protective vapor cloud. It is most effective in stagnant air; if there is a breeze, the unit should be placed upwind of your seating area so the vapor can drift over the zone you want to protect.
One practical feature is the color-changing mat, which turns from blue to white to indicate when it needs to be replaced. At altitudes above 4,000 feet, the piezo ignition system may require multiple clicks to start due to thinner air. The 12-hour starter kit provides enough consumables for a few evenings of outdoor use.
For times when you are on the move and cannot use a stationary device, the Repel Lemon Eucalyptus spray provides reliable personal protection.
Look through our mosquito repellent lanterns with built-in fans for more advanced zone-protection technology.
