The dry esp is employed on hot process exhausts (250 - 850 deg. F) that operate above the dew point of the gas stream. The dry esp typically collects dust particles such as wood, incinerator or coal ash from boiler or incinerator applications. Additional applications include carbon anode ovens, cement kilns, and petroleum cat crackers. These units are attractive due to their collection and transportation of dust in a non wet condition. This eliminates the use of water and the concerns of pollution, corrosion and dewatering efforts associated with scrubbers. If the removal process of dust particles can be handled this way, it is more advantageous to employ a dry esp rather than a wesp.