When soldering tin-lead solder emits vapours, which are very harmful, especially lead. The smell of rosin is not all pleasant. Some hams even have to leave your favorite passion – grumble’s household. However, there is a way to make exhaust ventilation. For example, I use this for over 20 years. When making use of almost everything is ready. The hoses and the top cover is taken from a vacuum cleaner. The snail and the impeller from the heater of the car “KAMAZ”.
Engine brands EDG number 2750 revs per minute and a power of 80 W from the old tape recorder (you can use another high-speed). Had to weld only the base and the end of the “snail” for attaching the hose. The base box has dimensions 200x200x130 mm. there are placed an electric motor.