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Blueair

BLUEAIR Air Purifiers for Small Rooms, Bedroom, Home, Cleans 926 sqft in one hour, HEPASilent Air Cleaner for Pets, Allergens, Virus, Dust, Mold, Smoke - Blue Pure 511i Max

  • Based on 13,525 reviews
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Availability: In Stock.
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Arrives Monday, Dec 1
Order within 6 hours and 49 minutes
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Style: Small Room - Wifi


Features

  • BLUEAIRS TOP-PERFORMING AIR PURIFIER LINE: Blue familys new Pure Max series with our proprietary HEPASilent performance now even better with up to 83% faster cleaning and 50% less noise*
  • QUIET PERFORMANCE: Blue Pure 511i Max operates on low at 19 db and is never louder than 48 db. With lowest fan speed and fully dimmed lights, Blue Pure 511i Max cleans your air without keeping you up at night with Night mode.
  • FAST RELIEF: HEPASilent dual filtration technology delivers more clean air faster and uses less noise and energy than HEPA filtration alone** Cleans up to 465sqft living space in 30min or 193 sqft in about 12.5min on high
  • CLEAN AIR: Removes at least 99.97% of tiny airborne particles like viruses and smoke down to 0.1 microns, and captures pet dander, pollen, mold, allergen and dust; carbon filter traps light household odors from smoke, pets and cooking***
  • APP ENABLED: Blueair smart air purifier app scheduling, air quality monitoring, Clean Air ETA, Welcome Home geofencing and RealTrack accurate 69 month filter tracking technology are customizable features; Alexa voice control available
  • EASY TO USE BUTTONS: Intuitive display, 5-color AQI, and simple two-button design make it easy to control fan speed 1 3 including night mode, auto mode and child lock
  • MULTIPLE FILTER OPTIONS: 3 customized replacement filters for 511i Max. F5MAX Original Particle & Carbon Filter (B08KPJG1HS), F5MAX SmokeBlock Filter(B08KQLZXKF), and F5MAX AllergenBlock Filter(B08KQJBPQ2)
  • INDEPENDENTLY TESTED FOR PERFORMANCE & SAFETY, ZERO OZONE: AHAM Verifide for Performance (CADR); Ozone Safety Standards Certified by CARB; Zero Ozone Verified (<5 ppb) by Intertek Sustainability
  • Energy Star Most Efficient 2023; Blueair air purifiers use less energy (as low as 2.5W 20W depending on fan speed) and less than an LED lightbulb on low
  • LETS CLEAR THE AIR WITH BLUEAIR: Our Blue Pure Max air purifier comes with one filter pre-installed and a pre-filter for easy set up; This product is made for NORTH AMERICA USE ONLY and should only be used with input voltages between 110-120V

Description

Blue Pure 511i Max HEPASilent smart air purifier quickly cleans up to 465sqft living space in 30min or 193 sqft in about 12.5min on high. 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 125 for fine smoke particles, dust and pollen. Get more out of the filter thanks to our proprietary RealTrack algorithm where fan speed, usage time and pollution levels are used to calculate exactly how dirty the filter is based on actual usage and tells you more accurately when to replace it within 9 months. Shop genuine Blueair Blue Pure F5MAX replacement filter designed for optimal performance: Blue Pure 511i Max air purifier replacement filter B08KPJG1HS. Also, available: F5MAX SmokeBlock Filter(B08KQLZXKF), and F5MAX AllergenBlock Filter(B08KQJBPQ2) to fit your needs. Blueair is the only line of air purifiers with a customizable, washable fabric pre-filter. Inspired by the latest Scandinavian design trend, Blue Pure Max air purifiers arrive in the Stockholm Fog pre-filter, while Limestone, Moss and Sand pre-filters are sold separately. 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.Noise refers to the dB(A) difference in acoustic power. 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. Tested PM 2.5 (0.1 - 2.5 microns) up to 90min in a 30m3 room. Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.

Color: Grey


Brand: Blueair


Product Dimensions: 10.6"D x 10.6"W x 18.9"H


Floor Area: 526 Square Feet


Specification Met: HEPA Certified


Color: Grey


Brand: Blueair


Product Dimensions: 10.6"D x 10.6"W x 18.9"H


Floor Area: 526 Square Feet


Specification Met: HEPA Certified


Noise Level: 48 dB


Controller Type: Button Control


Wattage: 20 watts


UPC: 689122026619


Manufacturer: Blueair


Item Weight: 2.84 pounds


Country of Origin: China


Item model number: 3132111100


Assembly required: No


Number of pieces: 1


Batteries required: No


Included Components: Air Purifier, pre installed filter, and pre installed fabric pre filter


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • easy to set up and use. glad I got it
Style: Small Room - Wifi
It was easy to set up. I admit I don’t notice much a difference in my air quality. But it’s a comfort and on the high setting, really great if oyu like some ambient fan noise when you sleep. The settings that allow you to dim the light (through the app) are so great. I love that this is quiet (no beeping), looks good, and is easy to set up. The design and app design are really brilliant. Upon installation, it showed in the app that my air quality was perfect, and the only occasion that it has dropped was temporary and when I was using cleaning spray. Within an hour it was back to perfect. Are the air quality readings trustworthy or just pretend? Idk. ... show more
Reviewed in the United States on May 7, 2025 by A.B.
    • Blueair 5111 Max, a great air purifier.
Style: Small Room - Wifi
This review is for a Blueair 5111 Max. It is an excellent air purifier for a smaller room, like my office. I had another brand for about 4 years, but it started making a loud blower-fan noise, and not worth repairing. Years ago I had a larger Blueair purifier which always worked great, but was given to a family member. This unit has the appropriate features and options to be quite effective, and easy to use. ... show more
Reviewed in the United States on May 28, 2025 by TheRickster
    • I never really expected these air purifiers to work, but they do.
Style: Small Room - Wifi
For 30 years we have lived in this house with dust and could never find a product that we trusted to work with the forced air ducking in our house. Then three months ago, we found Blueair air purfiers and the comments were so favorable that we ordered one for each bedroom. After two weeks, the improvement in our air quality was so great that we ordered a very large one for the large family room, dining room and kitchen area. After three months, we don't have to dust the furniture or wood floors. It is amazing and now I'm thinking about all the fine dirt we have been breathing for thirty years. In fact, we starting noticing the change in the air we were breathing within a couple of days of starting the first three. It was sweeter smelling and tasting than we had ever experienced, almost like being on a mountain miles for any town. I'm an 87 year old retired Air Force Officer and I've never ever write a recommendation like this on anything! ... show more
Reviewed in the United States on April 25, 2025 by amajor
    • A great product for the price .
Style: Large Room
A great product for the price .. I leave ours on during the day at the low setting. As Im a bit sensitive to noise I usually turn it off when we go to bed. The cloth cover easily comes off for washing and does a pretty good job at pre filtering the dust.
Reviewed in the United States on May 19, 2025 by GFC
    • Worth every penny!
Style: Small Room - Wifi
Review Image by Mrs. G. Mrs. G.
Review Image by Mrs. G. Mrs. G.
Purchased back in October 2024 because I had moved into a basement room and with used furniture with visible water damage at the bottom, this is also near a busy road which brings in a lot of dust. I have outdoor and indoor allergies and for this first month living in the new place I tried to carry on hoping the dust and possible mold allergies won’t affect me but boy I was wrong. Since I was not in a position to buy new furniture at that time and needed a place I opted for the best next thing. After waking up for weeks with serious allergic symptoms that prevented me from having a restful night looked up many different air filters that would also filter mold particles and this one was the best in the market. From day one my sleep instantly improved and my allergy symptoms which are now none existent. A few things that I never thought I would come to appreciate from it was how effective it is at improving air quality with the smell of food after cooking, or keeping the air cleaner when ever I do my straighten my hair which is a lot. My air filter has been on 24/7 since day one and only now 6 months later I am seeing how much dust and debris each filter collects. ... show more
Reviewed in the United States on April 5, 2025 by Mrs. G. Mrs. G.
    • Simple, quiet, powerful
Style: Large Room
Initial impressions of this purifier are very positive. I'm not setup to test the actual purification abilities beyond an anecdotal indication that it seems to clear the air well. See the reviews on Smart Air (they think it works very well but is over priced), Consumer Reports (the 211 and the Classic 605 are their two highest rated units), and elsewhere. BlueAir is very well regarded in terms of actual cleaning effectiveness. For all the other features, here are some of my key decision points and useful tips: First, I bought both a 121 and 211+ - they have similar specs, except the 121 has a 400 CADR rating rather than a 350 for the 211. I was a bit surprised to realize that they appear to have identical motor and fan units - you can swap them back and forth, and they measure identical power consumption, and sound the same. This means the 121 gets the slight boost by simply being taller and holding a larger filter. More filter area would make for more efficient filtration, and a small boost in CADR rating. This isn't really a knock, it is just worth noting if you are considering both units. I would say the 211+ is the better value in this regard, the 121 is over $120 more expensive, has $20 more expensive filters, and only slightly more filtration capacity. If you need something just barely over the 211+ in filtration, only have space for one unit, and have a large open space, then the 121 makes sense. Otherwise, if you need more than the 221 provides, and you have a space that isn't just one big open room, then buy two 211+s - it is still a better value than most of the other comparable units, and two small units will filter an uneven space better than one loud one. As for noise, these are both very quiet units (same noise, because they seem to have the same fan). The background noise in my house measured at 38dB, and I measured on an iPhone running DecibelX, A-weighted, at 1 meter from the unit, horizontally, mic pointed at the unit. - Low - 39dB, just barely over the background noise. It is not obvious that the unit is even on. - Medium - 48dB, I can tell that it is on from around the room, but only if I listen for it. - High - 55dB, OK, now it is making some noise, but it is soft in tone, not rattling or whining. Still reasonable in volume, and easy to talk over. It wouldn't kill your conversation and if you sleep with a white noise machine it might actually be similar volume (our DreamEgg at mid-high volume is about this loud). Power consumption is as indicated on the package - 30W, 43W, 62W, as measured by my meter. Quite reasonable again given the ~400CFM the fan must be blowing. Small things to appreciate: - The unit is attractive and simple. It doesn't look like a weird 90's appliance with a bunch of random protuberances or shiny stickers. It is clean and Swedish, and would integrate with a lot of decor. The changeable pre-filters come with a light blue and a midnight blue, and you can buy others. Looks fine without it as well, pure white. - The overall construction is simple and sturdy - a metal box to hold the square (but flat folding) filter, and an upper box with the controller and fan unit. - Upward blowing and pulling from all sides makes for a lot of filter area - units that just pull in the side or front are going to have a lot less filter area for the same air flow - meaning more noise. - The button on the front is capacitive - touch to change between off -> low -> med -> high -> off. It is sensitive and easy to use - I change it with my toe while holding a baby. - The unit remembers the last setting if the power is removed and restored. This means you can use it with a timer or in my case, Home Assistant automation! - The LED showing the current speed dims to 10% after a few seconds - very nice - I'm usually forced to put black tape over everything I buy to dim the bright LEDs everyone uses. The unit does not include Wifi (pointless and risky), particle counters (not going to be accurate at these price points), a display (why does it need one?), or an auto mode (read the articles on Smart Air about auto modes - they are mostly useless and sometimes much worse than just setting a moderate level and letting the unit run all the time). Basically it has everything you want - quiet fan, large filter area, easy buttons, and nothing you don't want. It isn't the cheapest unit, but it isn't the most expensive either. Compared to very cheap units you get a quieter fan and a more proven filter technology from a vetted company. Compared to more expensive units you lose some (mostly useless) control features, and some options for multi-stage filtering or chemical canisters like you might see from a (8X the price) IQair. My inlaws have a Blueair Classic 605 and this unit is smaller and quieter, for only slightly less filtration capacity, at 1/3rd the price. All in all, an easy recommendation if the filtration capacity meets your space needs. ... show more
Reviewed in the United States on August 26, 2020 by Sam

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