FIELD: ventilation.
SUBSTANCE: air cleaning unit includes an air duct, in one of the walls of which there are slots, into which guides are inserted and provided with cassettes with filters for different contaminating gases, which are placed in them and have a possibility of being moved. Before filters, in a flow of cleaned air there installed are air composition sensors connected to a gas analyser that is connected to a switch. Cassettes are mechanically connected to mechanisms of their movement, which are connected to the switch. Flanges are installed on the air duct ends.
EFFECT: reduction of labour intensity and improvement of air cleaning quality due to a possibility of automatic installation of filters in the air duct, which are intended for air cleaning from those contaminating components that are available in the cleaned air in unallowable amounts.
2 dwg
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