Diesel Particulate Filter: Replacement & Cleaning

Hi everyone,

The other day, I was stuck at a red light next to a completely broken-down truck that was spewing a thick cloud of black smoke from a pipe just 10 cm in diameter, directly towards the fresh air intake of the cars. It made me wonder, not for the first time, what a pollen filter, which most cars have these days, actually does to diesel soot.

Does this filter effectively capture the fine particles that are the subject of so much discussion, or are they too small to be stopped, and simply pass through the device?

Sure, you can sometimes avoid accidents by swerving, but I personally am not always quick enough, especially during rush hour, and unfortunately, this kind of situation happens quite often in city traffic.

Best regards,

Jan.

"The current state of the art is an activated carbon filter. The brochure emphasizes absolute pollen impermeability. Now, we just need chemists and biologists to tell us the size of the smallest pollen grain and the smallest soot particle. To be honest, I don't believe it can achieve that..."

Matthias.

'None of the offered air filters can remove the fine particles from diesel injection. They are simply too small. These activated carbon filters are primarily responsible for and effective against fuel odors and, above all, ozone (O3).'

The best thing to do is either start driving faster or turn on the fan.