Join our contest to win the Thermacell Patio Shield Mosquito Repeller! The Thermacell Patio Shield Repeller provides mosquito repellent without the spray, scent or mess of traditional mosquito repellents. With a 15-foot area of mosquito protection, you can enjoy your patio without mosquitoes bothering you and your guests. The Patio Shield Repeller is designed with a cover and is water resistant. It is easy to use and has a stylish compact design that looks great on any deck or patio.