Air conditioners play a crucial role in maintaining indoor air quality by filtering out particulates such as dust, pollen and other pollutants. Over time, their filters can become clogged, reducing ...

Toronto is among the most polluted cities in the world on Monday morning as the city remains under a special air quality ...

Montreal and Toronto made the list for the top-five major global cities with the worst air quality on Sunday. The cities ranked fourth and fifth, respectively, with air quality values in the ...

Environment Canada is warning residents the smoke from wildfires may continue to affect parts of southern Ontario into Monday ...

Smoke from Canadian wildfires hovered over the U.S. Midwest Saturday, prompting unhealthy‑air alerts across many states including Iowa, Minnesota and Wisconsin.

Toronto residents woke up to a familiar haze in the skies on Thursday as wildfire smoke once again blankets the city in ...