"Blue Pure 411+ air purifier quickly cleans 185sqft small room in about 12.5 min or up to 888sqft extra-large space in 60min, on high. Only Blueair air purifiers use HEPASilent™ technology, delivering maximum filtration with minimum noise. Combining mechanical filtration with electrostatic charging of particles produces clean air, faster, and much more quietly than traditional HEPA filtration alone. Delivers high performance with automated one-button control in a lightweight, compact package and includes washable, pre-filters in Dark Shadow (Gray) and Diva Blue. It can also be customized in other Swedish-inspired pre-filter colors that are sold separately. Carbon filter traps light household odors from smoking, pets, cooking, and more. Award-winning, sleek, Swedish design compliments your aesthetic while working hard to clean your air so you can place where it will be most effective at capturing airborne particles & odors without worrying about it cramping your style. Independently evaluated for safety standards and third-party tested for performance as part of the AHAM Verifide® Program for air cleaners, this air purifier has a Clean Air Delivery Rate (CADR) of 115 for fine smoke particles, 130 for pollen particles, and 120 for dust particles. CLEAN AIR IN A MATTER OF MINUTES: Comparing CADR performance of Blueair models with mechanical and electrostatic filtration vs same models with only H13 HEPA mechanical filtration. When similar CADR was measured, Blueair models with mechanical and electrostatic filtration achieved less noise with less energy than same models with only H13 HEPA mechanical filtration. According to AHAM, air changes per hour (ACH) is the measure of the outside air volume added to a space divided by the volume of that space over a set amount of time. REMOVES ODOR & PARTICLES DOWN TO 0.1 MICRON: Blueair models with HEPASilent's mechanical and electrostatic filtration produced higher CADR, lower noise, and had lower energy consumption vs. the same models with only mechanical filtration (H13 filter). Tested on PM2.5 (0.1 - 2.5 μm) up to 90min; Tested on Influenza A (H1N1) with a minimum reduction rate of 99.99% in 60min. BACTERIA, VIRUS & MOLD SPORE REMOVAL: Tested to reduce E.coli and Influenza A (H1N1) with minimum reduction rate of 99.9% in 60min; Tested on A.niger with minimum reduction rate of 99.9% in 60min".
- Best performing air purifier brand¹; Unique HEPASilent filtration technology is equal in efficiency to True HEPA, while using less energy and less noise
- Small bedrooms; Filters the air at industry-recommended rate of 5x an hour (every 12 minutes at 185 ft²) to effectively lower and maintain particle levels
- Combination filter; Activated carbon removes odor and gas; HEPASilent filtration technology removes 99.97% of particles, like pollen, dust, and viruses
- Quiet Mark awarded for sleep without disruption; whisper-quiet on low (17 dB) and equivalent to the noise level of a library on high (46 dB)
- Customize with 6 pre-filter color options, or leave the white mesh frame for a Scandinavian look; washable fabric pre-filter in Dark Shadow included