Author: Samuel Teh

PM2.5 particles are 30 times smaller than a human hair — invisible, odourless and able to stay airborne for hours. Discover where these particles come from and why the cleanest-looking air isn’t always the cleanest air.

Think outdoor air is the real problem? Your home might be trapping more pollutants than the street outside. Discover the hidden sources of indoor air pollution — from cooking fumes to VOCs — and simple ways to breathe cleaner air at home.