Cabin Air Filter Data

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by PiPLosAngeles, Nov 17, 2018.

  1. PiPLosAngeles

    PiPLosAngeles Active Member

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    I can find dozens of cabin air filters for my car, but only Bosch reports anything about the efficiency of their filters. Is there any data anywhere about the efficacy of various cabin air filters? I spend about 12 - 15 hours a week in traffic and the better I can filter the air I'm breathing in my car the longer I'm likely to live.

    As far as I know Bosch is the only true HEPA cabin air filter. They don't report a filter that will fit the 2018 Prime, but I'm wondering if the 6055C will fit since it fits Gen 4 Prius.
     
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  2. bisco

    bisco cookie crumbler

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    not that i have seen. that's why i stick with the oem charcoal
     
  3. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    Nah, roll the window down, rest your elbow on the sill. Oh yeah, never mind:

    upload_2018-11-17_8-46-25.png
     
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  4. Starship16

    Starship16 Senior Member

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    HOLY COW!!!!!!

    and for the OP, I would think the same size filter is in the Gen4 and the Prime. Mendel?
    (I'm using charcoal like bisco.)
     
  5. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    This was a recent LA brush fire I believe, google images wouldn't steer me wrong. IIRC it said something about Mendocino? Oh hang on, that's north Cal. Oh well.

    The smog is the worst in the world right now, they're saying.
     
  6. Starship16

    Starship16 Senior Member

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    Yes, it's definitely a good idea to have a good cabin filter while driving is CA these days. (North, west, east, or south!)
     
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  7. PiPLosAngeles

    PiPLosAngeles Active Member

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    I physically verified that the Bosch 6055C filter is the identical size of the OEM filter. The only thing is the pleats run the "wrong" direction. Modifying the plastic holder is easy and solves the problem. Now I can have HEPA cabin air filter.
     
  8. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    By wrong direction, do you mean 90 degrees off? Does it matter?
     
  9. bisco

    bisco cookie crumbler

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    i wouldn't think so. will a hepa filter slow air flow? how do they work?
     
  10. Starship16

    Starship16 Senior Member

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    I paid 25 US bucks for the Toyota OEM charcoal filter. (Mendel is going to faint. :ROFLMAO:)
     
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  11. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    I just checked ours, it's fine. :ROFLMAO:

    IMG_9618.JPG
     
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  12. Starship16

    Starship16 Senior Member

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    I spent my Pizza money.
     
  13. PiPLosAngeles

    PiPLosAngeles Active Member

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    Correct. It doesn't matter for filtration purposes, but you can't insert it into the plastic holder until you cut off the tongue that requires pleats oriented in a certain direction.

    I did notice that the fit wasn't 100% precise. The Bosch filter is about 2mm wider so it bunched up a little tiny bit in one corner. It was very small, though. I was able to press it flat. I'm willing to do a little work every year or so to get HEPA-level filtration, though.
     
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  14. PiPLosAngeles

    PiPLosAngeles Active Member

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    It may slow airflow a little. They just work by having pore sizes small enough to catch particles 0.3 microns and larger. PM 2.5 are like boulders to a HEPA filter.
     
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  15. MikeDee

    MikeDee Senior Member

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