http://en.wikipedia.org/wiki/Air_filter
The filter goes in before the air con chiller unit. As explained above it helps prevent gunk collecting on the unit and helps prevent mould growth and resultant in car pong. Most air con equipped cars have them fitted for this reason.
The filter goes in before the air con chiller unit. As explained above it helps prevent gunk collecting on the unit and helps prevent mould growth and resultant in car pong. Most air con equipped cars have them fitted for this reason.