Fast, easy and effective way to economically control mosquitoes and other flying insects. Use for yard, deck, patio andpool, especially when preparing for picnics, special events and outdoor entertaining. Features include an unbreakable 40-oz container, trigger lock to prevent accidental dispensing of insecticide, push-button starter, and 1-qt odorless insecticide. Uses a standard propane cylinder (SOLD SEPARATELY). Works up to 6 hours. For best results, fog when wind is 5 mph or less.