Tess Eidem and her team at the University of Colorado Boulder fill the lab’s air with tiny particles of cat dander, dust mites, mold, and pollen. These airborne allergens, released into a sealed ...

It absorbs cats' waste, and is surprisingly useful for a bunch of other reasons. But cat litter is something worth keeping on hand even if you don’t own a cat. You can buy pounds and pounds of it for ...

There’s an old saying: When the only tool you have is a hammer, every problem looks like a nail. Sometimes referred to as “the law of the instrument,” that hammer-and-nail idea is a common pitfall in ...