As the skies over the New York City metropolitan area exude doomsday vibes, residents are looking for ways to make the air a little more breathable. Some have returned to masking outdoors while others ...

People in the U.S. spend as much as 90% of their lives indoors ...

Katelyn Richard does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...