Blue Pure 311i+ Max
Air Purifier, Large rooms
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Blue Pure 311i+ Max is designed with sensitive groups in mind. Equipped with advanced HEPASilent Dual filtration technology that removes airborne allergens, dust, and asthma triggers.
- Quickly cleans 465 ft² in 12.5 minutes, 1,000 ft² in 30 minutes, & 2,000 ft² in 1 hour.
- Automatically detects and quickly removes pollutants such as dander, pollen, dust mite matter allergen and more.
- Compact with 360-degree air intake, so you can place it anywhere
- RealTrack in-app filter monitoring accurately tracks filter lifetime based on usage and pollutant levels.
- Variety of washable pre-filter colors designed to blend seamlessly in your home
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Wi-Fi connectivity for remote controlYes
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On/off timerYes, via Blueair App
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Speed control options1 - 2 - 3 - 4 - Auto - Night
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Integrated air sensorsYes
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Specialty filter add-on
Specialty filters designed for additional protection against allergens or smoke.
“I recommend Blueair air purifiers to my patients because of their strong performance and their commitment to third party testing, which gives me peace of mind that the airborne particles that commonly exacerbate allergy and asthma symptoms are being captured*”
“Blueair's 311i+ Max was the best at capturing the full range of contaminants floating through the air in a typical home. Its advanced multi-level filtration captures contaminants of all sizes — not just dander and pet hair, but also cooking fumes, dust mites and pollen.”
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HEPASilent™ technology combines electrostatic and mechanical filtration to capture tiny airborne pollutants like pollen, dust and smoke, faster³ and quieter⁴ than traditional HEPA.
Our original filter. Removes allergens and traps light household odors from pets, cooking and smoke
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2x more activated carbon than our original filter. Removes up to 99.99% of wildfire smoke
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Extra protection against allergens. Traps and neutralizes dust, pollen and pet dander
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Dimensions(HxWxD)21" X 12.5" X 12.5"
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Product weight7.9lbs
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Energy consumption38 W
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Sound levelLow Setting: 23 dB High Setting: 50 dB
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Air outletTop
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Recommended room size465 ft2
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Air changes per hour (ACH)4.8
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Clean air delivery rate (CADR)Pollen 300 cfm Dust 300 cfm Smoke 300 cfm
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Number of filters1
Our HEPASilent™ dual filtration technology removes 99.97%¹ of airborne particles down to 0.1 microns, ensuring pollen, cooking odors, smoke, dust, pet dander, mold, chemicals, allergen matter and even tiny particles such as viruses and bacteria², are captured with minimal noise and energy consumption.
To achieve maximum performance we recommend placing your Blue Pure 311i+ Max in a room around 465 ft² room so your air purifier can clean the air at the AHAM recommendation of 4 times every 12.5 minutes. The Blue Pure 311i+ Max will clean a 1,00 ft² space in 30 minutes, and 2,000 ft² in 1 hour.
Operates quieter than a whisper on low at 25 db and is no louder than 50 dB on high fan speed.
Your filter will last up to 1 year thanks to our proprietary RealTrack algorithm that accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you. Alternatively, connect to the Blueair app to receive an alert and easily re-order at the touch of a button.
Register your product to extend the 1-year warranty to a 3-year warranty.
¹ Comparing pollen CADR on high fan speed (Blue Pure 411a Max & 411i Max vs. Blue 411 Auto), other units may vary. Based on AHAM maximum allowable certified rating which may vary from the AHAM seal claimed valued.
² Tested on PM 2.5 in 90 mins
³Sound pressure at max fan. Assuming 387 sq.ft room size and 4.8 air exchanges per hour (AHAM AC-1)
⁴Quietest refers to eligibility for Quiet Mark certification, limited to 10-20% of quietest products. See https://www.quietmark.com/ for further information
*Min. reduction 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger