Illustration: Kieran Blakey

The Nuance

Do You Really Need an Air Purifier?

What they can and can’t do, and why some air purifiers may come with risks

Published in
5 min readMar 12, 2020

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DDuring the back half of the 19th century — a time when tuberculosis was widespread in smog-choked cities across the United States and Europe — fresh air was thought to be a potent elixir for diseases of the mind and body. This was the…

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Markham Heid
Elemental

I’m a frequent contributor at TIME, the New York Times, and other media orgs. I write mostly about health and science. I like long walks and the Grateful Dead.