The TURBO FOG M-45 is a versatile, lightweight, portable, self-contained smoke generator capable of producing dense, voluminous white smoke using leak-proof liquid smoke cartridges. Each cartridge can be replaced in seconds, allowing quick and easy replacement even while the unit is operating, allowing for uninterrupted smoke production. There is no need to add additional smoke bombs or pump garden sprayers for additional test time. The Briggs & Stratton-powered turbine-type blower is a lightweight 45 pounds and creates a discharge velocity of over 75 mph and 2,000 cfm. It continues to work under pressure in up to 5.75 inches of water. It is available with a plumbing conversion kit. 800/394-0678; www.turbo-fog.com.