Editor's Note: March 4, 2026 – Ahead of spring and summer allergy season, we’ll be testing a few additional air purifiers for consideration in this roundup. We’re intrigued by the Sans Air Purifier ...

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...

Air purifiers with HEPA filters remove airborne particles smaller than 0.3 microns. CADR ratings indicate how quickly an air purifier can filter air, with higher ratings meaning faster cleaning. The ...