Hacker News new | ask | show | jobs
by batmanthehorse 1466 days ago
Yeah this was very bizarre to me. It seems like the author just missed the basic fact that the H13 is the same H that makes it 'true' HEPA.

He can (and did) argue that this distinction doesn't really matter, but the distinction is still part of a well-defined standard that The Wirecutter didn't invent.