TORONTO — This fall, teachers and parents have been sharing photos on social media of do-it-yourself air purifiers that they’ve made for classrooms to help protect kids from COVID-19 transmission. But ...

For some of us, allergens are our worst enemy — the fresh pollen of spring, fall foliage, and of course the ever present dust, mold and animal dander. Sometimes the only solution is a high-tech air ...

Whether it’s the usual pollution of the city, or the fact that your corner of the globe happens to be on fire currently, poor air quality is a part of daily life for many people. One way of combating ...