Repel 190397 Propane Insect Fogger for Killing and Repelling Mosquitoes, Flies, and Flying Insects in Your Campsite or Yard The same effective system used by professionals to kill mosquitoes. Kills and repels mosquitoes, biting files, and flying insects for up to 6 hours Treats an average 5,000 square foot yard or campsite in less than 10 minutes Everyone can enter the treated area as soon as the fog disperses (typically less than 5 minutes) Propane powered making the fogger completely portable. Compatible with a 14.1 oz. tall style or 16.4 oz. short style propane cylinder (sold separately)