FIELD: cleaning equipment. SUBSTANCE: vacuum cleaner has device for removal of contaminants from gas flow and fan, which are positioned in gas flow channel, and recuperative heat-exchanger with at least one channel for gas to be heated and with at least one channel for cooled gas, both channels of recuperative heat- exchanger being communicated with gas flow channel. EFFECT: increased efficiency and reduced power consumption for disinfecting air in vacuum cleaner. 41 cl, 14 dwg
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