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I did a bunch of tests with a similar filter (albeit comparing to a cheaper commercial purifier)

It's crazy that commercial manufacturers usually don't even attempt to provide data like this to show that their products actually, you know, work.

This. Instead, they’ll come up with whatever irrelevant metric like measuring purification power in Watts.

All we want to know is asthma per hour in the room, and cancers per years in that city ;)

This could be a HN submission in it's own right. Really interesting 'home' science.