A peak flow meter is a handheld device that measures airflow rate and can help those with respiratory conditions like asthma ...

Matt Fuchs lives in Maryland and writes about health, science, and technology. Matt Fuchs lives in Maryland and writes about health, science, and technology. When George Thurston leaves his cottage in ...

The color-coded Air Quality Index categories you’ll find on the Environmental Protection Agency’s AirNow website rank air quality on a 500-point scale and are meant to give the public an easy way to ...