The temperature and humidity of the incoming dusty gas in the electrofilters and bag filters downstream have a significant effect on the performance of the dust collection equipment. Cooling towers reduce temperature and increase humidity by creating special conditions and spraying water. This system can reduce the temperature of the inlet gas to the filters (in electrofilters up to 150 ° C and in bag filters to the desired design temperature). The use of water spray systems with high pressure nozzles causes the filtration level to be significantly reduced.