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Bosch has a 99.97% HEPA CAF #4408504
05/19/17 07:43 AM
05/19/17 07:43 AM
Joined: Apr 2005
Posts: 644
NE Ohio
knerml Offline OP
knerml  Offline OP
Joined: Apr 2005
Posts: 644
NE Ohio
Might be of interest for people with allergies, or live in polluted areas.

Picked it up on Amazon Prime. Cost $29, but the quality seems to be much better than most.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W30 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4408593
05/19/17 09:10 AM
05/19/17 09:10 AM
Joined: Aug 2003
Posts: 13,224
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 13,224
NE,Ohio
if it filters that well will it be restrictive or plug up fast

(like furnace filters)


2019 Jeep Cherokee Trailhawk 2.0T
Re: Bosch has a 99.97% HEPA CAF [Re: Rand] #4408874
05/19/17 03:26 PM
05/19/17 03:26 PM
Joined: Jan 2017
Posts: 643
Melbourne, Florida
RichardS Offline
RichardS  Offline
Joined: Jan 2017
Posts: 643
Melbourne, Florida
Originally Posted By: Rand
if it filters that well will it be restrictive or plug up fast

(like furnace filters)


True, but if you're torn up from allergies, $10 a month for cleaner car air might not be that rough.


2008 Dodge Caliber SE 2.0 117k
4qt Imeditsu 0w-20, 1/2qt Mobil SS 5w-20 Fram HM

2003 Buick Century 107k
4.5q Havoline 5w-30 HM Fram XG
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4425007
06/07/17 11:40 AM
06/07/17 11:40 AM
Joined: Jan 2004
Posts: 4,639
California
nthach Online content
nthach  Online Content
Joined: Jan 2004
Posts: 4,639
California
Last time I got a Bosch, it was a reboxed MicronAir with a Bosch stamp but it was made in the same factory. I wouldn't be surprised if this was the case here.

Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4425398
06/07/17 07:11 PM
06/07/17 07:11 PM
Joined: Apr 2005
Posts: 644
NE Ohio
knerml Offline OP
knerml  Offline OP
Joined: Apr 2005
Posts: 644
NE Ohio
From what I am seeing for my applications, this seems to be a premium CAF.

Bosch CAF


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W30 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4425698
06/08/17 06:08 AM
06/08/17 06:08 AM
Joined: Sep 2015
Posts: 125
US
Fordai Offline
Fordai  Offline
Joined: Sep 2015
Posts: 125
US
Good find! I will be putting this in my Explorer on the next oil change.


2013 Ford Explorer - Valvoline Synpower 5W20 / Motorcraft FL-500S
2008 Hyundai Elantra - Valvoline Maxlife 5W30 / Hyundai OEM
Re: Bosch has a 99.97% HEPA CAF [Re: Rand] #4426109
06/08/17 04:26 PM
06/08/17 04:26 PM
Joined: Mar 2008
Posts: 7,524
USA
slacktide_bitog Online content
slacktide_bitog  Online Content
Joined: Mar 2008
Posts: 7,524
USA
Originally Posted By: Rand
if it filters that well will it be restrictive or plug up fast

(like furnace filters)


a couple Amazon reviews on them indicate this to be the case, noticing much less airflow from the AC/heat. Whether this tradeoff is worth it depends on how bad your allergies are smile

Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4440822
06/25/17 05:09 AM
06/25/17 05:09 AM
Joined: Apr 2005
Posts: 644
NE Ohio
knerml Offline OP
knerml  Offline OP
Joined: Apr 2005
Posts: 644
NE Ohio
Installed the filter in my 2011 Sorento, and went on a week long vacation trip.

There is significant air flow restriction. Affected A/C performance.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W30 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4459310
07/14/17 12:46 PM
07/14/17 12:46 PM
Joined: Apr 2017
Posts: 1,494
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,494
Ontario, Canada
Restricting the airflow can also burn out the blower motor and blower motor resistor or transistor.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Bosch has a 99.97% HEPA CAF [Re: mightymousetech] #4459334
07/14/17 01:11 PM
07/14/17 01:11 PM
Joined: Jan 2008
Posts: 11,109
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 11,109
OH
Fram Fresh Breeze has great air flow and only $10.08 on Walmart.com. In store it was $18 or so but easy price match. The old oem one was pretty gunked up. I now freeze with the AC on in no time. Before that never happened always had it on high for the most part. Plus the charcoal/carbon gives the air a nice crisp fresh air scent all the time.

I never expected much from a cabin filter but this is very nice.

Last edited by SatinSilver; 07/14/17 01:13 PM.
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4494888
08/21/17 10:20 PM
08/21/17 10:20 PM
Joined: Oct 2009
Posts: 3,694
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,694
Wet side WA
Amazon Toyota OEM replacement $6.08 change it when I change the oil.


2004 Corolla 128276
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74615
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4567680
11/08/17 10:59 AM
11/08/17 10:59 AM
Joined: Jun 2011
Posts: 15
FL, USA
Davejam Offline
Davejam  Offline
Joined: Jun 2011
Posts: 15
FL, USA
More pleats vs. standard would negate the higher filtering efficiency. This is how higher quality furnace filters generally operate. To the extent that they actually have less air-flow restriction.

Though standard CAF usually have plenty of pleats...so I can see why this isn't effective.
There may be cars specifically designed for a HEPA filter? such that it won't negatively impact the system?

Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4680649
02/28/18 02:10 PM
02/28/18 02:10 PM
Joined: May 2008
Posts: 2,148
Parts Unknown
UG_Passat Offline
UG_Passat  Offline
Joined: May 2008
Posts: 2,148
Parts Unknown
I never found charcoal cabin filters to be effective. The Mann ones have a solid layer of charcoal, which probably doesn't flow too well, through the pores of the charcoal.

I have the Bosch one on order, to be installed by spring time, which is usually when I put a fresh filter in.


2016 VW Tiguan|APR Stage 1|Neuspeed P-Flo|Osram CBI|Redline 5w30
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4681384
03/01/18 09:58 AM
03/01/18 09:58 AM
Joined: May 2008
Posts: 2,148
Parts Unknown
UG_Passat Offline
UG_Passat  Offline
Joined: May 2008
Posts: 2,148
Parts Unknown


Haven't noticed a reduced flow in my HVAC system yet.


2016 VW Tiguan|APR Stage 1|Neuspeed P-Flo|Osram CBI|Redline 5w30
Re: Bosch has a 99.97% HEPA CAF [Re: knerml] #4725876
04/13/18 01:54 PM
04/13/18 01:54 PM
Joined: Aug 2005
Posts: 4,563
NW Ohio
Jim Allen Offline
Jim Allen  Offline
Joined: Aug 2005
Posts: 4,563
NW Ohio
Bought some for the Uplander. The fit is beyond horrible. Really sucks! Would like to have sent them back with a small jar of Vaseline but decided to make them fit using filler material because of the HEPA aspects. I used these to replace Fram CAF, which fit perfectly. If my wife didn't have allergies, that's what would be in there again. Airflow is OK and we'll see if it plugs prematurely. I intend the FCI to be one year and have the means to check airflow changes. Have a manometer also and will compare delta-p between the used Frams and the HEPA Bosch. Too busy to do it now and the wife was already started with allergy troubles.

I had bought the lower grade Bosch carbon impregnated ones to try and they fit even worse. Sent those back and got the higher grade in what turns out to be a forlorn hope.

Unless I figure something out, I won't be putting Bosch in next FCI.


Last edited by Jim Allen; 04/13/18 01:54 PM.

Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive
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