Health experts also reveal how air purifiers work to prevent illness and where you should put them in your home.

CNET experts have tested dozens of air purifiers in our Louisville testing lab. Here's how we evaluate them to provide ...

Delhi’s air quality remains hazardous, pushing many to rely on air purifiers. Are they safe, and can overuse harm your lungs?

When buying an air purifier, it's crucial to check if it emits ozone gas. Only the right purifier can keep your home's air ...

WASHINGTON — Ex-EPA chief Christie Whitman denounced as "downright falsehoods" the criticism of her assurances that it was safe to breathe the air around the fallen World Trade Center. "There are ...