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Old 01-25-2005, 01:05 PM   #11
LyveWRX
Scooby Specialist
 
Member#: 19057
Join Date: May 2002
Chapter/Region: MWSOC
Location: Milwaukee Jct., Detroit, MI
Vehicle:
2002 WRX
& Red Ford 1-ton Van

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I'd guess that a intake engine air filter would be at least HEPA quality. (99.97% of all particles >.3um (first pass efficiency)) The problem is that if the Max CFM at the pressure that the blower motor produces (prob not > 12"H2O) is too low there is a chance of not cooling the blower motor properly.
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