Completely portable this lightweight butane -powered fogger is the most economical way to kill mosquitoes biting flies and flying insects. The secret is in the microscopic particles it produces - up to 7 times finer than mist! The fog floats and penetrates deep into landscaped areas where mosquitoes hide - killing mosquitoes on contact and creating a 'mosquito-free' zone for up to 6 hours. In about 5 minutes the fog is gone so you can start enjoying the outdoors again. Takes an average of 10 minutes to treat a 5000 square foot yard. Use before backyard picnics barbecues outdoor parties and special events. This is the same effective system used by professionals to kill mosquitoes. The Mini Fogger features a 2 litre reservoir and requires a standard aerosol gas cylinder (one included). Also has a trigger lock prevents accidental dispensing of insecticide. For best results use only with Deltafog chemical branded oil based for Fogging Insecticides. For outdoor use only.