Few objects symbolize the pandemic as well as the N95. Impossible to find until they were ubiquitous, the double-strapped ...

Treating clean indoor air as a public good would have protected Americans against all sorts of airborne diseases. In the ...

Melanie Richburg used a roll of duct tape, a HEPA filter and a portable fan to draw contaminated air out of a hospital room ...

The North American Aerospace Defense Command provides aerospace warning, aerospace control and maritime warning for North America.

Investigators issued their preliminary report Tuesday in the probe into the devastating crash between an American Airlines plane and a U.S. Army Black Hawk helicopter.

Sean Duffy announced plans to upgrade air traffic control systems across the U.S. and use artificial intelligence to identify ...