Pollen Filters
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Thread: Pollen Filters

  1. #1
    1000+ Posts gerry freed's Avatar
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    Default Pollen Filters

    I have long suspected that the only material benefit of these filters is to improve the dealers' margin on service.
    Only one of our cars has such a filter and it it does about 10,000 kms per year at say at an average speed of 65kmh . That means that I spend about 150 hours a year protected by this filter and and 8,600 hours without it. That looks like a very marginal benefit unless I move into the car or put filters on the house windows.
    Has anyone told the dealer to stick it and removed the filter permanently?

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  2. #2
    Former Frogger
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    Depends where you drive the car, but they can collect a great deal of debris in some cars. For many other owners, it's of little benefit and would be replaced by a dealer well before it's really needed or has much reduced airflow. Extend the change interval, buy aftermarket or blow the existing one out and extend it's life. The prices charged for filters by dealers are relatively high, yes. And are you being charged the genuine price, but getting an aftermarket filter in any case??? If you leave it out, do you have any other form of screen in the plenum?

  3. #3
    Member andrethx's Avatar
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    as i understand it, because of the way cars' ventilation systems work, dust/pollen/etc. tends to build up over time in a car's interior (bosch says 6x the concentration of outside)...most cars have their egress vents up high and towards the rear, so the effects of gravity mean that many particles fall downward in the airstream's trip between the dash vents and the egress vents. if you live in an area with lots of dust and/or pollen and you are sensitive to this, it can be a problem.

    that said, i agree with david that this is a "your mileage may vary" type of issue, and that high-quality aftermarket filters are a much better value.

    andré
    1986 Peugeot 505 GL (xn6, 4sp auto)

  4. #4
    1000+ Posts gerry freed's Avatar
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    Yes but I drive other cars more kms without filters and live in a high pollen area due to plane trees and I can't see how the car filter can have any effect on health as it only controls my air intake for a tiny percentage of my life.
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  5. #5
    Gone Fishin' Haakon's Avatar
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    Every little bit helps...

    They respond well to a vacuum cleaner and a bucket of soapy water though

  6. #6
    1000+ Posts Fordman's Avatar
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    Quote Originally Posted by gerry freed View Post
    Yes but I drive other cars more kms without filters and live in a high pollen area due to plane trees and I can't see how the car filter can have any effect on health as it only controls my air intake for a tiny percentage of my life.
    I lke your logic, Gerry. I like to think that the filter at least stops leaves and other smaller crap from getting into the fan and ducts and flaps, an area which is pretty well impossible to clean.
    2004 Scenic I 2.0 auto (Hers)
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    2004 WRX (Sunday car)

  7. #7
    Fellow Frogger!
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    Having replaced activated filters in both my cars, they really do look sad after about 12/18 months.
    The theory is that if you do a lot of idling around in slow traffic, it removes chemical pollutants from the cabins limited air supply.
    You can't tell by looking how much activated charcoal/carbon is left. it eventually becomes a debris filter - only stopping leaves and dust from getting through.

  8. #8
    Contented Peugeot Driver addo's Avatar
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    Some filtration is essential, although I leave the nomenclature to others.

    You only have to dismantle HVAC boxes with and without "pollen" filters to appreciate how much nicer a filtered one is. One has compost in it, usually wedged against and through the AC evap unit, the other only has a light sooty dust coating the insides.

    In either case, "sanitising spray" is huile de serpent. You have to dismantle the box every ten years and scrub the f**k out of it. Aerosols are pissing in the wind.

  9. #9
    1000+ Posts Renomad's Avatar
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    I like to drive with the windows down when the conditions permit it, so the pollen filter is of little use then, but I have noticed that the air vents tend to stay dust free, unlike my other 'non-pollen filtered' cars!
    I've changed it once in 9 years of ownership.
    Cheers Renomad

    "Today's mighty oak, is just yesterdays nut that held it's ground"

    Current frogs, Dad's R19 & Dad's Scenic.

    Past frogs, R12 Wagon X2, R12GL, Fuego X2, R10 X2, R8 X.5!


  10. #10
    1000+ Posts catshamlet's Avatar
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    Quote Originally Posted by Renomad View Post
    I like to drive with the windows down when the conditions permit it, .
    Yeah, we know, we've seen the photos



    Mike.
    Started out with nothing, still got most of it left.

  11. #11
    1000+ Posts Renomad's Avatar
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    Quote Originally Posted by catshamlet View Post
    Yeah, we know, we've seen the photos



    Mike.
    Damn you, internet!
    It's true what they say, once it's on the net, it's there forever!
    I hope it didn't upset your lunch too much Mike!
    Cheers Renomad

    "Today's mighty oak, is just yesterdays nut that held it's ground"

    Current frogs, Dad's R19 & Dad's Scenic.

    Past frogs, R12 Wagon X2, R12GL, Fuego X2, R10 X2, R8 X.5!


  12. #12
    Fellow Frogger! petitepoupée's Avatar
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    Ummm.... ??
    1974 D Special, 2015 Fiat Panda Twinair turbo 85hp (), 2011 VW biturbo camper.

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