CNET has been testing robot vacuums for years, but we're always refining our testing procedures. Here's the process we use to evaluate robot vacuums for cleaning, navigation performance, obstacle avoidance, noise levels and more.

We put a dozen new air purifiers through comprehensive lab testing to find out which ones offer the best particle filtering, noise levels and energy efficiency. Here are our five new winners.

CNET experts have tested dozens of air purifiers in our Louisville testing lab. Here's how we evaluate them to provide recommendations for flu season, pet owners and allergies.

Fire TV users can now watch short-form content from Instagram creators on their televisions.