ZDNET's recommendations are based on many hours of testing, research, and comparison shopping ... The best smart air purifier is one that not only filters out chemicals, toxins, and particles ...

Whether you’re battling allergies, trying to keep pet dander and dust at bay or want to help clear your home of environmental pollutants like smoke or smoggy air, having access to a great air purifier ...

Laura Lancaster I recorded the time for the air purifiers for smoke to drop to below 50 PM 2.5, 10 PM 2.5, and then below 1 PM 2.5. For comparison, governmental guidelines suggest keeping 24-hour ...