If you think that indoor air pollution is not as potent as its outdoor counterpart, think again. The Environmental Protection Agency (EPA) itself has made it clear that indoor air pollution can be two to five times worse—and in rare cases, even a hundred times more potent. Also, it’s scarier considering the fact that approximately 90 percent of a person’s time is spent indoors.
But just how much more dangerous is indoor air pollution to be considered a significant concern? Compared to outdoor air pollution which typically involves only exhaust fumes from industries and vehicles, indoor air pollution is in fact caused by a much wider variety of contaminants.