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Blueair Pure 511i Max HEPA Silent Air Purifier for Small Room, 926 sq. ft. Coverage
$139.99
In Stock
Eligible for registries and wish lists
At a glance
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About this item
Highlights
- BLUEAIR’S TOP-PERFORMING AIR PURIFIER LINE: Blue family’s 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 6–9 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
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.
*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.
*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.
Dimensions (Overall): 14.5 Inches (H) x 9.3 Inches (W) x 9.3 Inches (D)
Weight: 4.9 Pounds
Number of Settings: 5
Wattage Required: 45 Watts
Filter Type: HEPA
Industry or Government Certifications: Quiet Mark, AHAM Certified, Energy Star Certified
Room Size Range: 800-1000 sq. ft.
Allergens Captured: Pollen, Fireplace Smoke, Odors, Smog, Wood Burning Stove Smoke, Household Dust, Gases, Bacteria, viruses, Dustmite Debris, Mold Spores, Pet Dander, Tobacco Smoke
Power Source: Electric
Battery: No Battery Used
Warranty: 1 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 91920668
UPC: 689122026619
Item Number (DPCI): 085-00-0228
Origin: Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 16.5 inches length x 11 inches width x 10.9 inches height
Estimated ship weight: 6.7 pounds
This item ships in its manufacturer’s packaging, revealing what’s inside. ·
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
Q: If an item is listed as out of stock, does that mean that it can't be ordered online?
submitted by Gary - 10 months ago
A: Thanks for your question! If an item is marked as out of stock, you may still be able to order it online. However, shipping times may take longer depending on when the item is restocked. If you have any additional questions about the Blue Pure 511i Max, please don't hesitate to get in touch with us at https://www.blueair.com/pages/contact-us
submitted byBlueair Support Team - 2 months agoBrand expert
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Guests are saying
The Blueair Blue Pure 511i Max air purifier impresses guests with its sleek design, quiet operation, and effective air purification capabilities. Many guests have noted significant improvements in air quality, especially for those with allergies or respiratory issues. The app connectivity allows for easy control and monitoring, making it a convenient choice for any room. While some guests mentioned the need for more frequent cleaning and occasional issues with the Wi-Fi setup, the overall performance and aesthetic appeal make it a highly recommended product.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.7 out of 5 stars with 196 reviews
60% would recommend
5 recommendations
4 out of 5 stars
23 September, 2025
originally posted on blueair.com
Baby shower gift
I bought this as a baby shower gift which will take place on Oct. 25. I will have a review after the shower. It was a recommendation on the gift options.
4 out of 5 stars
21 September, 2025
originally posted on blueair.com
Small but Mighty!
I love my 511i! I really have enjoyed using this product. I find the app super simple and convenient. I look forward being able to watch the light go from red to blue and show me in real time how clean my air is becoming. I have also noticed less congestion. We live / rent an older house and the air quality is not as good. I will be picking up a couple of more units here soon to help the whole house be a bit fresher and cleaner air for us to breathe!
5 out of 5 stars
Thumbs up graphic, would recommend
13 September, 2025Verified purchase
Small but effecient
This is small, unobtrusive, and a little stylish while doing an amazing job bought 2 for pet dander, new carpet smell and smoke it made a noticeable difference to my most sensitive kids in just a few hours very happy with this purchase
3 out of 5 stars
12 September, 2025
originally posted on influenster.com
Great purifier wifi not so great
[This review was collected as part of a promotion.] I do like this a lot. It is so quiet and barely uses much energy. Really noticed a difference in air quality in the basement since we put it out. But heres the thing the wifi set up isn't the greatest. I get why they would only want it on not the full throttle wifi but I dont have the option for wifi splitting so it just purifies rhe air really well. Can't really read anything on the air quality.
1 reply from Blueair team - 2 months ago
Thank you for sharing your experience with the Blue Pure 511i Max. We’re so glad to hear it’s making a noticeable difference in your basement’s air quality and that you’re enjoying its quiet, energy-efficient performance. We also appreciate your feedback on the Wi-Fi setup and air quality readings. It helps us continue improving the experience.
5 out of 5 stars
Thumbs up graphic, would recommend
10 September, 2025Verified purchase
For when its like someone kicks up dirt and suddenly you cant breathe anymore without cleaner air.
I had to buy this. And it helps and it makes me feel so snobby about air quality but i got so self conscious and aware about the particulate matter and household level of pollution it’s like I couldn’t breath anymore and was forced to purchase things.
5 out of 5 stars
8 September, 2025
originally posted on blueair.com
Highly recommend
I absolutely love this product! Superb form and function for an excellent price.
4 out of 5 stars
5 September, 2025
originally posted on blueair.com
Clean Air!
As a first time buyer I’m very impressed with my 511i, unlike most other brand such as Shark, Blueair has the app that works great and it’s very convenient. Only down side is that after some time the device gets bit dirty and requires me to clean more often then usual. But least I know it’s doing exactly what it’s intended to do! Overall the 511i Max makes a great air purifier for any bedroom or nursing room!
1 out of 5 stars
Thumbs down graphic, would not recommend
23 August, 2025Verified purchase
fabric sleeves and coverings
my last blue air the motor burned up due to the fabric cover making it overheat. I returned it for that reason, and also the fabric cover is attached by a screw instead of just slipping it over it, both of which are not ok. also I would want an air purifier, not a digital anxiety, but just and on and off switch.
1 reply from Blueair Support Team team - 2 months ago
We’re sorry to hear about the trouble with your previous unit and want to help make this right. For the 511i Blue Pure Max, the prefilter slips on, no screws required, and we can help you set it up for simple, non-app use if you prefer. Please email us at info@blueair.com with your details and reference this review so we can assist and look into the experience you've described.
5 out of 5 stars
21 August, 2025
originally posted on blueair.com
Very Effective
Recommended by Consumer Reports and -as usual- CR knows. Quiet, small, nice looking. The very first morning I awoke with noticeably less congestion. Money well spent.
5 out of 5 stars
19 August, 2025
originally posted on blueair.com
Excellent
Whisper quiet, looks good, app works easily. I should've bought two!
5 out of 5 stars
16 August, 2025
originally posted on influenster.com
Quiet!
[This review was collected as part of a promotion.] Love the crisp clean air! I have three cats and so there is a lot of fur in the air and this helps with filtering the hair and smells going on in our home!
5 out of 5 stars
8 August, 2025
originally posted on blueair.com
Great little filter
My son has asthma worsened with allergies. Before getting this filler he would cough all night in his room and have to use his nebulizer. Since we put this in his room he has not had to use his nebulizer and he’s able to sleep without coughing. I was skeptical but very glad I got this for his room
1 out of 5 stars
1 August, 2025
originally posted on blueair.com
Sensors aren't sensitive so auto mode isn't useful
I love BlueAir in general so I bought 3 of these to try to automatically handle the fluctuating air quality due to Canadian wildfire season over the summer/fall which causes bad air over much of North America. However, the sensors on all three units are extremely permissive. I have high quality PurpleAir monitors to give real readings but the only time these 511i Max units would say anything other than PM2.5 of 0, was when I blew candle smoke directly into the sensor holes. That turned the fan up for 10 seconds, then back down and it said the air was great again (the real PM2.5 was around 15 in the whole house at this time, because of the wildfires). Therefore, if I want to filter, I'll have to manually control them through the app, but that makes this product about 3x the cost of other smart filters that you control through apps & it won't be responsive to changes in the air overnight in my children's rooms. Very disappointed :(
1 reply from Blueair team - 3 months ago
Thank you for sharing your experience and bringing this to our attention. We're sorry your Blue Pure 511i Max isn't performing as expected, especially during critical times like wildfire season. We've reached out to you directly to better understand your experience with the sensors and help find a suitable resolution. Your family's health and comfort are important to us, and we're committed to assisting you further.
5 out of 5 stars
25 July, 2025
originally posted on blueair.com
Stop reading reviews and just buy it
Awesome product. Had this 6 months so far and my sinus issues have almost completely subsided. The app, alerts and lights on this are very useful. The sensor picks up crazy things like when you bug spray across the house and turn on the fan and scrub the air in a matter of minutes (or so it says). They are pretty quiet unless you max speed them, but even then theyre not too loud. The washable cover/filter is great, after a while you can see it needs a wash, toss it in the washer and its all good. Would 100% recommend.
5 out of 5 stars
20 July, 2025
originally posted on blueair.com
Excellent for Litter Box Odor
This purifier does a great job in the litter box area. I have completely stopped needing to use any air freshener sprays, and don’t notice the smell I did before. It’s almost silent when running. Highly recommended.
5 out of 5 stars
20 July, 2025
originally posted on influenster.com
Creates much cleaner air!
[This review was collected as part of a promotion.] I love how much better the air quality is! My mom (with respiratory issues) lives with people that smoke in her house. I walked in one day and the odor was so bad! I brought the air purifier to her house, and now you can't even tell!
3 out of 5 stars
Thumbs down graphic, would not recommend
13 July, 2025Verified purchase
Bad sensor
Everything is as described, except the air quality sensor is garbage. The AQI outside has been around 200 the last two days and I set it up to test for an hour... The readings were from 1-3. If you want a decent filter you can turn on/off with an app, this is fine, but otherwise look elsewhere
1 reply from Blueair Support Team team - 3 months ago
Thank you for your feedback! The sensor is designed to monitor indoor air quality specifically, which can sometimes differ noticeably from outdoor AQI readings—especially when windows and doors are closed. Regarding the filter light indicator, you can reset it by pressing and holding the fan speed button for about 15 seconds, until all LEDs on the interface light up. Then, release the button—the filter light should turn off. For a step-by-step visual guide, you might find this video helpful: https://www.blueair.com/blogs/blue-pure-max/how-do-i-reset-the-red-light-filter-light-indicator-on-my-blue-pure-max-air-purifier?_pos=9&_sid=e2eb02073&_ss=r If the readings still seem consistently inaccurate, we’d be happy to help troubleshoot further.
5 out of 5 stars
10 July, 2025
originally posted on blueair.com
Wonderful product
Love this product works well and so quite. Tried this 511i and now will order one for the whole house.
5 out of 5 stars
9 July, 2025
originally posted on influenster.com
Love this Air Purifier!
[This review was collected as part of a promotion.] This Blueair Air Purifier is fantastic. It is sleek and very modern looking. Fits into any room. The noise isn’t insane. It is relatively silent unless you are a bionic listener. It is a wonderful addition to add to the arsenal of clean breathing! Love it!
5 out of 5 stars
8 July, 2025
originally posted on blueair.com
Surprised after cooking
We were surprised at what happens after cooking.It's nice to see it's taking things out of the air.