Principle Of Wet Film Humidifier The water is sent to the sprinkller system by the pipelline through the upper water pump, and the lower part is a highlly water-absorbing humidification materiall-wet film.Under the action of qravity water penetrates downward along the evaporative Coolling pad material and the water is absorbed by the evaporative Cooling pad material to form a uniform water film: when dry air passes throuah the evaporative Coo ina pad materia the water molecules fullv absorb the heat in the air and vaporize and evaporate makina the humidity of the air increases. creatina moist air.An increase in the humidity of the air causes the temperature to drop. but the enthalpy of the air remains the same.Wet film humidifiers are divided into direct drainage humidification and circulating water humidification Product advantages 1. The outer frame is made of stainless steel, laser cutting, with small dimensional tolerance, which can be plus or minus 0.5MM, 2. High precision of sheet metal bending 3. Sufficient humidification 4. The water flow is uniform 5. The material is certified by ROHS.