AIR CLEANING SYSTEM FOR ONE OR SEVERAL ROOMS AND A FILTRATION UNIT FORMING PART OF THE AIR CLEANING SYSTEM

摘要

Air-cleaning system designed for one or more rooms in a building and comprising a filtering unit (1), and a blower assembly (18) for driving the air through a number of filters in the filtering unit and for circulating filtered air through the rooms. The side walls (21, 24) of the unit form outer walls for air ducts (33, 34, 35, 36) in the filtering unit (1 ), for air currents between the inlet and outlet of the unit and for passage through the filters, with three sections above one another. Each filter section extends between two of the side walls arranged opposite each other in pairs. Each filter section has partition walls (37, 38, 43, 44) which separate each filter and bypass ducts (33, 34) of a first type for carrying an uncleaned air current to filters located above. Other partition walls (39, 40) separate bypass ducts (35, 36) for cleaned air, which has passed through filters lying below, from filters lying above. In this way, the air currents can be made to pass in parallel flows through the respective filter.