The Blueair Classic 480i air purifier allows you to take full control of your indoor air with integrated sensors, smartphone control, and Alexa compatibility. Independently certified for rooms up to 434 ft², the Classic 480i comes standard with a DualProtection filter to remove odors, as well as 99.97% of airborne particles, like pollen, dust, pet dander, bacteria, viruses, and more with HEPASilent filtration technology. The durable steel construction and up to 5-year warranty with product registration ensures clean air for years to come. The Classic 480i operates at whisper-quiet noise levels (32- 56 dB) and is ENERGY STAR certified for best-in-class energy efficiency (15-90 W).