3 ms·
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) ar
by batmanthehorse 4y 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.