It’s finally spring, which means the weather is slowly but surely getting warmer, spring cleaning is in full effect and seasonal allergies are on the rise. If you’re sensitive to dust and pollen, you ...

If you’ve invested in an air purifier, you likely want to get the most out of its filters. Replacing filters can be costly, and discarding them every few months isn’t environmentally friendly. However ...

Most air purifiers come with two different filters: a prefilter and a HEPA filter. Some even have a third filter. Each manufacturer's recommendations will vary in terms of cleaning the filters.

Delphine Farmer is a professor of chemistry at Colorado State University. When wildfire smoke turns the air brown and hazy, you might think about heading indoors with the windows closed, running an ...