Blue Pure 311i Max
Air Purifier, Medium rooms
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spaces with fresh, clean air
Breathe clean air where it matters most. With powerful yet quiet filtration, the Blue Pure 411i Max transforms your bedroom or home office spaces into refreshing environments for restful nights and productive days.
- Quickly cleans 387 ft² in 12.5 minutes, 929 ft² in 30 minutes, & 1,800 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 - Auto - Night
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Integrated air sensorsYes
Specialty filter add-on
Specialty filters designed for additional protection against allergens or smoke.
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“Forest fire smoke beware, Blueair Blue Pure 311i Max is the best air purifier you can buy—especially where smoke is concerned. In our tests, the Blue Pure displayed the best particle filtration of any air purifier we’ve tested”
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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)19" x 12.5" x 12.5"
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Product weight7.8lbs
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Energy consumption32 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 size387 ft2
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Air changes per hour (ACH)4.8
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Clean air delivery rate (CADR)Pollen 250 cfm Dust 250 cfm Smoke 250 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 387 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 900 ft² space in 30 minutes, and 1,800 ft² in 1 hour.
Operates quieter than a whisper on low at 23 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, pollen allergen (Cry j1), cat allergen (Def f1), fungal allergen (Alt a1), dust mite allergen (Fel d1). Performance may vary across models.
³ Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.
⁴ Tested on TVOC, sulfure dioxide, nitrogen dioxide. Deodorization tested on ammonia, acetaldehyde, acetic acid.