Hengst Blue.care

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Oct 3, 2014
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1,882
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NoVA
Looks like the one on the right is the charcoal version, hence why it has fewer pleats. I prefer the non-charcoal myself.
 

service_now

Thread starter
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Nov 14, 2018
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Finland
Both have charcoal / active carbon, and something else. Left is Hengst Blue.care, 5 layers: The first layer comprises an electrostatic pre-filter medium that captures coarse particles. The second filter medium captures more dust; the third, with an active carbon layer, separates vapors, odors, and harmful gases like ozone, nitrogen oxide, and sulfur dioxide. Number four, the Meltblown medium, retains fine dust and microparticles with a diameter of less than 2.5 μm. The fifth bio-functional layer has an anti-microbial effect. Right Mahle Caremetix, 5 layers: High-performance particulate filter layer Molecular layer Engineered activated carbon layer Biofunctional layer with activated carbon Protective layer
 
Joined
Oct 30, 2002
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41,936
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Great Lakes
Thanks for posting about these blue "biofunctional" filters. Those are the Hengst part numbers ending with "LB." The charcoal ones end with "LC," and the standard ones end with "LI." I just picked up an "LC" one for wife's Q5 from RockAuto the other day. It was $16 including shipping. Dealer wanted $65 to get it replaced. [Linked Image from i.imgur.com]
 
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