Best Air Purifiers for 2025 — Guide & Picks
Best Air Purifiers for 2025 — Guide & Picks Indoor air can be up to five times more polluted than outdoor air. Energy-efficient homes trap pollutants from cooking, cleaning chemicals, fragrances, pets, smoke and off-gassing furniture. When outdoor air is clean, opening windows for at least 15 minutes a day dramatically improves indoor air quality. If outdoor air is unhealthy (wildfire smoke, heavy traffic pollution, or high pollen), a quality air purifier is the next best option. What air purifiers can and can’t do Air purifiers remove particulate matter (PM2.5/PM10) and—when equipped with activated carbon—can reduce VOCs and odors. HEPA (true HEPA) filters capture very small particles like dust, pollen, mold spores, smoke and some bacteria. No consumer air purifier can reduce CO2; ventilation (opening windows or mechanical ventilation) is…