The Blueair Classic 680i air purifier brings clean energizing air to spacious bedrooms living rooms or any big rooms up to 698 sq ft. A built-in air quality sensor makes it easy to confirm your air is virtually free of asthma and allergy triggers and indoor air pollutants such as mold, dust, pet dander, and pollen by scanning the air quality in real time and adjusting fan speed to your current air quality. The Classic 680i delivers unmatched performance thanks to HEPASilent technology which combines electrostatic and mechanical filtration technologies. This combination pioneered by Blueair delivers high clean-air delivery rate (CADR) with whisper-silent operation and high energy efficiency.

Performance you can trust; Independently evaluated and third-party?tested for performance as?part of the AHAM?Verifide? Program?for room air cleaners Extra-large rooms; Filters the air at a rate of approx. 4.8x an hour (every 12.5 minutes at 698 ft?) to effectively lower and maintain particle levels HEPASilent technology; Removes 99.97% of airborne particles down to 0.1 microns, such as pollen, dust, mold, pet dander, bacteria, and viruses⁰ Automatically keep up with changing conditions to assure air quality never becomes unhealthy with intelligent sensors, AUTO mode, and Wi-Fi Recyclable, so the only thing you're adding back into the environment is clean air. Please check local your recycling facilities for availability. Wi-Fi enabled; Change settings remotely from your smartphone via the Blueair app or connect with your Amazon Alexa enabled device for voice control Built to last with durable, galvanized steel housing; backed by up to 5-years of warranty coverage when you register your air purifier Sleep without disruption with noise-levels no louder than a whisper on low (33 dB) and equivalent to the white noise of a floor fan on high (62 dB)