You’ll enjoy hours of insect-free outdoor fun with the Dynatrap Mosquito Trap on the job. There are no cartridges, lures, scents or batteries to replace or refill – it produces small amounts of CO2, which lures insects into an escape-proof compartment where they perish naturally.Â For indoor and outdoor use in a covered area. Provides up to half an acre of coverage. 6′ cord plugs into any standard household outlet. Size: 10′ dia. x 12’H.