Profile: The Clean Air Company specializes in providing filtration and ventilation systems. We are an ISO 9001:2008 certified company. Our certified industrial ventilation design specialists provide free onsite surveys to properly evaluate the project. The PNP unit (Plug and Play) is a self-contained unit all packaged up and ready to work. This unit includes the fan in a sound absorbing housing with touch screen controls allowing you to control pulse cleaning, increase/decrease fan speed and monitor pressure. SHN electrostatic precipitator is engineered to perform long-term, heavy-duty industrial air cleaning eliminating smoke, mist and dust generated by a variety of applications ? brazing, casting, flame cutting, drilling, grinding, milling, screw machining and more.