Abstract: A new and improved apparatus for adding moisture to the air supplied to the air intake of an internal combustion engine, wherein a container means chamber is partially filled with a water supply leaving an air passageway thereabove and including an air inlet means for directing a first predetermined portion of incoming air into the water and a second predetermined portion into the passageway above the water to create turbulence in the water to facilitate adding moisture to the air as it flows in the passageway and is thereafter discharged to an engine intake.

Abstract: A pollution control device having a tank provided with an inlet and an outlet arranged for passing a gaseous medium to be cleaned into the tank and through a bath of washing solution held in the tank. A blower unit, mounted outside of the tank, forces the gaseous medium through the bath. A line connecting the blower unit to the bath passes a quantity of washing solution through the blower unit for cooling the unit. Baffles are arranged partially immersed in the bath in the tank for creating a large surface across the gaseous flow and facilitating separation of particulate matter from the medium being cleaned. The baffles are advantageously in the form of a plurality of cylinders each constructed from a mesh material and tiered in one or more substantially vertical channels arranged within the tank.