CADR 230 cubic ft./min.
Recommended room size up to 375 sq.ft. (15'x25'.)
- Room size is based on standard 8' room ceiling height.
- 5 air-changes per hour with the unit on high speed.
- See How to Choose an Air Cleaner to calculate for any size room.
The BLUE PURE 311i Max features:
- HEPASilent™ technology to deliver maximum filtration (up to 83% faster) with minimum noise (up to 50% less).
- 4 fan speeds (1, 2, 3, night), plus child-lock and brightness controls.
- Wi-Fi connectivity via Blueair app, allowing you to monitor your home's air quality and adjust the settings remotely.
- Integrated air sensors for quick air quality readings via an easy LED 5-color indicator-- displayed on the unit or within the app--that keeps track of the levels of coarse particles (Particulate Matter10) like dust, pollen, and mold spores; as well as fine particles and ash (PM2.5 and PM1) like smoke, pollution and viruses.
- Welcome Home feature using geo-fencing technology via the Blueair app to put the air purifier into standby mode when you leave the house and turn it back on again as you approach home.
- Accurate filter tracking using Blueair's proprietary algorithm to easily view the most accurate filter usage and reorder before filter expires. Filters generally last 6-9 months.
- Includes a washable pre-filter in the color Stockholm Fog (gray).
- Voice control Assist to control your air purifier hands-free.
- Quiet operation 23-53dB for 211iMax; Quiet Mark Certified.
- Low energy use- Energy Star Certified.
- Size and weight 21" x 12.5" x 12.5"; 7.8 lbs.
- Warranty up to 3 years with registration.