"Blue Pure 311 Auto air purifier quickly cleans 388sqft medium room in about 12.5 min or up to 1862sqft 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 up to 45%?faster with up to 67% less noise than traditional HEPA filtration alone. Delivers high performance with automated one-button control in a lightweight, compact package and includes a washable, pre-filter in Arctic Trail (Gray). 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 250 for fine smoke particles, 244 for pollen particles, and 250 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.


REMOVES 99.99% OF COMMON ALLERGENS: Tested on pollen particles 5.048 - 11.14 μm on Blue Auto, DustMagnet™ and Protect.


MOST AWARDED AIR PURIFIER BRAND IN THE US: Based on survey of over 50 awards, accolades, and recommendations issued by independent consumer associations, media publications, and industry competitions from January 1, 2022, through August 16th, 2022, for products sold in the US by top 10 air purifier brands according to NPD Group Retail Tracking Service, Small Appliances, U.S. sales dollars June 2022 YTD.


BACTERIA & MOLD REMOVAL: Tested on E.coli with mininum reduction rate of 99.9% in 60min. Tested on A.niger with minimum reduction rate in 99.9% in 60min."