What does a DPF actually filter out?

The Diesel Particulate Filter is designed to trap soot from diesel exhaust and burn it off incrementally so that less unburnt particulates escape out into the air. in this exerpt from and episode of Banks Entry Level, Erik explains just how small these particulates are, and also how dangerous.

Full episode: https://youtu.be/NJKH4gT1LAs

Watch all of Entry level: https://youtube.com/playlist?list=PLwtmrqcWzLtRvl-NhEntpp-njD6SLsP8Y
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