Thermacell Backpacker Mosquito Repeller provides zone protection for you and your entire campsite; Scent-free and DEET-free; Fuel efficient - up to 90 hours of run time on a 4 oz. canister; Lightweight, minimalist design (114 g/4.0 oz.) Compact and portable (97 H x 50 W x 67 mm L) No messy sprays or lotions on your skin