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Ep 186: Weighing Cats, Slamming VU Meters, Slimmer Skimmers, and Clean Air on the Cheap

Hackaday Podcast

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The Story of the Coursy Rosenthal Box

This is the story of open source, free as the air you breathe. The coursy rosenthal box is a do it yourself ventilator that's made by going to the hardware store and buying m e r v 13 filters. A dean of engineering at u. C. Davis quantified how good this design was. It actually makes up for the fact that the filter is only like 80 % efficient by just pumping so, so much more air through that it ends up being better at cleaning the air than expensive hippa filters.

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