MotorVac EVAP100 CoolSmoke Leak Detection SystemMotorVac EVAP100 CoolSmoke Leak Detection System with New "Cold Smoke" Technology New, safer, healthier technology. Uses no heat to create high visibility smoke. Using 0. 5psi pressure control, CoolSmoke leak detector has the highest flow rate of any smoke machine! Smokin' its competition. The Cool Smoke machine features dual mode leak detection: test for leaks with or without smoke at the push of a button. Pressure and vacuum leak diagnostics with