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Cabin Filter - Arrow up or down?

[XD2] 
12K views 13 replies 9 participants last post by  mtlelantra 
#1 ·
I recently picked up a purolator cabin filter and there is an arrow directing which way the flow is supposed to go. My question is, should that arrow point up or down when the filter is installed?
 
#7 ·
No, air is pulled from the cowl vents (at the base of the windshield). The passes through the filter and then the blower motor (under the filter) pushes it to the center of the car where the heater core and A/C evaporator are loceted and then up into the vents.




1 Recirculating air port
2 Outside air port
3 Defrost air vent
4 Panel air vent
5 Floor air vent
6 Air inlet blend door
7 Air temperature control door
8 Defrost airflow door
9 Panel airflow door
10 Floor airflow door
11 Air filter
12 Blower unit
13 Evaporator core
14 Heater core
 
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