Hi-tech also specializes in Green House Ventilation and their evaporative Air CoolingEnvironmental control Systems have Cellulose Paper PadsFills duly housed in G.I. casing with G.I. or R.R.P. distributor and water trickling arrangement through Header. The water collecting tank (Gutter) is also made of G.I. & is of rugged construction. The simple water distribution system through intricate profiles of pads provide the necessary water to air contact so as to attain exceptionally high efficiencies in cooling. As water droplets