The easy air purifier High performance, easy use and a beautiful design make the Blue Pure 221 an excellent choice for health-conscious people who want to breathe perfectly clean indoor air. Thanks to the 360° air intake, it is easy to place wherever you want and you can count on excellent air quality. Perfect for spacious living spaces.   Industry-leading filter technology Blue Pure 221 incorporates Blueair's industry-leading filter technology. The entire bottom half of the Blue Pure consists of an advanced, recyclable filter. It captures virtually any airborne contaminant: pollen, dust, pet dander, mold spores, allergens, viruses, and bacteria — and 99% of all PM2.5 particles. The activated carbon even removes smoke, odors, gases, and VOCs (volatile organic compounds).   Intuitive one-button operation Super simple one-button operation makes it easy to turn the air purifier on and off - and control the operating speed. It also alerts every six months (operating time) when it's time to replace the filter.   Whisper quiet Blue Pure 221 is whisper quiet, so you can place it anywhere.   Blue is actually green The polypropylene fibers in the Blue Pure 221 filter are natural enemies of bacteria and fungi. And like all the other components in the Blue Pure air purifier, the material is 100% recyclable. In addition, the unit consumes as little energy as an incandescent bulb 24/7.   One-click miracle When you finally need to replace the Blue Pure filter, you don't have to be an engineer. All you need are two index fingers and one click.   Features of the Blueair Blue Pure 221: - 5 air changes per hour in a room of 50m2 - CADR: smoke/dust/pollen 590m3/hour (120 cfm) - Suitable for spacious living spaces - One-button operation for three fan speeds - Unique Blueair filter with 4.4 m 2 surface - Leading Blueair filter technology - Energy efficient (30 - 61 W) - Quiet (31 - 56 dBA) - Filter replacement indicator - Easy to use and maintain - Third-party tested by AHAM and Energy Star - 2 pre-filters (optional) included, colors Diva Blue and Dark Grey (pre-filters available in five different colors: Diva Blue - Dark Grey - Crystal pink - Lunar Grey - Buff Yellow) - 2 years.