From homes and apartments to office buildings, hospitals, and schools, the average American spends 87 percent of their life indoors — and another 6 percent in enclosed vehicles. That means for the overwhelming majority of Americans, the air entering their bodies every day is directly impacted by the buildings that make up the environment.
However, it’s not all fun in the sun, as heat is the leading weather-related killer in the U.S., according to the U.S. Environmental Protection Agency (EPA).