9000 Hatchback L4-2290cc 2.3L DOHC Turbo EFI (1994)
Fresh Air Filter: Description and Operation
Filter For Cars With A/C
The filter is located beside the air intake, before the evaporator. The fibers stop the largest particles, but to trap the smallest ones, electrostatic charge is
used. Using electrostatic charge, the filter attracts parts, more or less as a magnet attracts iron fillings.
In addition to removing all visible particles, the filter also removes pollen, spores, other types of dust, asphalt fumes etc. from the cabin air.
In filters used up until M1991, oiled glass fibre was used as the filter material. This filter cleans the air as particles stick to the oil on the fibres.
