Johannesburg's air quality has never really been measured systematically. Like many other cities across the globe, scientists ...

Summer heat is on its way, and this year, the most cost-effective cooling units aren’t necessarily the biggest or flashiest.

An Air Purifier Can Prevent You From Getting Sick. Our Data Shows This Model Works Best ...

Pollen is actually a relatively large particle compared with smoke and many kinds of dust. A dedicated secondary filter ...

In the time it takes to type this sentence, I will have taken three breaths. Twelve in a minute, 20,000 a day, 7.5 million a year, most of them indoors. Yet until quite recently, researchers have not ...