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๐ฌ๏ธ Breathe Better, Live Smarter โ The Quiet Powerhouse for Your Space
The BLUEAIR Blue Pure 511 is a compact, Energy Star-certified air purifier featuring exclusive HEPASilent technology that cleans up to 432 sq ft in 30 minutes. Operating whisper-quiet at 24 dB, it removes 99.97% of airborne particles as small as 0.1 microns, making it ideal for allergy sufferers, pet owners, and small rooms. Its customizable Scandinavian-inspired design and low energy consumption make it a stylish, efficient addition to any modern home or office.









| ASIN | B08KPJCDN6 |
| Best Sellers Rank | #6,375 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #22 in HEPA Filter Air Purifiers |
| Brand | BLUEAIR |
| Brand Name | BLUEAIR |
| Color | Grey |
| Contaminant Filtration Capability | True |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.4 out of 5 stars 3,226 Reviews |
| Filter Class | HEPA |
| Filter Type | Activated Carbon |
| Floor Area | 432 square_feet |
| Included Components | Air Purifier, installed filter, fabric pre-filter |
| Item Dimensions D x W x H | 7.9"D x 7.9"W x 13.9"H |
| Item Type Name | Air Purifier |
| Item Weight | 5.2 pounds |
| Manufacturer | Blueair |
| Model Number | 3131000000 |
| Noise Level | 24 db |
| Part Number | 109994 |
| Particle Retention Size | 0.1 micron |
| Power Source | Corded Electric |
| Product Dimensions | 7.9"D x 7.9"W x 13.9"H |
| Special Features | Corded |
| Specification Met | Energy Star Certified |
| UPC | 689122023182 |
| Unit Count | 1 Count |
E**N
Actually quiet and works wonders!
Iโve been looking for a solid air purifier that wouldn't break the bank, and after seeing this one for around $100, I decided to give it a shot. Honestly, itโs one of the best purchases Iโve made for my home recently. What I Love: Whisper Quiet: This was the dealbreaker for me. On the lowest setting (sleep mode), I can barely hear it at all. Even on the medium setting, itโs just a very gentle white noise that doesn't interfere with the TV or sleep. Noticeable Air Quality: I have a dog that sheds quite a bit, and within two days, the "stale" pet smell in my living room was completely gone. The air just feels... crisper. Sleek Design: Itโs compact enough to sit in a corner without being an eyesore, and the controls are super intuitive. The Verdict: If youโre looking for something effective without spending $400 on a high-end brand name, this is the sweet spot. It does exactly what it promises and stays quiet while doing it. Definitely worth the $100 investment if you have allergies or pets!
A**R
Works great with no problems
We have had this machine since around 2020 and it works great. I replace the inner filters every 6 months. The outer cover helps make the filter last longer. It had various speeds and noise levels. Overall I would say itโs quiet. It helps reduce dust accumulation, smells and allergies. It is very lightweight and portable, it has been a great value and is still running great five years later. My only complaint is that I have to reset the filter notification. Sometimes it takes me a bit a couple of attempts to reset the notification lights.
E**.
most magical device in my office
I just received this amazing, magical, fantastic device and HOLY COW does it work wonders. I bought this for my home office, which has been plagued by dust, cat dander, and whatever other crud builds up in my house. I constantly have to use compressed air dusters to keep my devices clear, but that just throws the particles into the air. I've tried other purifiers in the past, with mediocre results. This thing ran on medium speed for about a day and it's made a HUGE difference already. I no longer see the usual layer of ickiness across my desk, laptop, monitors, keyboard, etc. It's very quiet - I forgot it was even running until I realized how clean everything is! My coworker (an orange tabby named Tuck) is a little wary of it, but after a few hours he stopped glaring at it and went back to his regularly scheduled nap. Based on how great this works in my small office, I plan to get the larger capacity version for my open living room. I expect I'll be just as thrilled with that one.
M**E
Difficult to understand use, no clear on and off
I like the effectiveness of this air purifier so as far as performance goes, I think it should have five stars. Since thereโs no way of testing air quality and we just have to go on faith, Iโm guessing that itโs a good quality machine. However, clearly it was designed with aesthetics in mind and not practicality. Itโs difficult to turn on an off or to know how to turn it higher or lower. You do this with a series of taps on the top ring. Itโs very Star Trek in a very unnecessary way. I love Star Trek. I love everything about Star Trek. I donโt think even they wouldโve kept this on the enterprise because itโs too annoying to use , however, having said that I just turned mine on low and keep it on all the time. I have noticed that environmental allergies bother me much less this year. If you are into the super modern look and have the gray walls that all designers think everyone should have now, you might love this look and usage facility might not bother you. I donโt think an older person would be able to use this easily. The only thing that lets you know if itโs on or off is a light that shines for a moment when you tap it. There is delay in the action so you donโt know if youโve actually turned it up higher or turned it off for a few seconds, so if youโre impatient like me and tap it again, youโll probably accidentally turn it off and have to start all over again . Again, weird design, leaving you confused. Is very silent and thatโs a big plus. It probably deserves one more star, but Iโm too annoyed with the lack of the on and off clarity to increase my stars. Hereโs an idea, how about somebody make a vintage looking air purifier with simple on off switches, make it look like a vintage radio. I bet that would be a big seller, the nice old-fashioned knobs. On and off. I have no idea how Iโm going to change the filter when itโs time to change it, the whole thing is a mystery as to how itโs assembled, and I wish they would just include a few extra filters with the purchase so then you werenโt trying to figure out what kind of machine you have and which kind of filters to buy six months later. Iโd be willing to pay extra to have the extra filters delivered with the purchase. If I sound annoyed itโs because I am. But Iโm sure the machine is good quality. Updated review 9/11/24: The machine is actually silent on low. Itโs been on all day and I didnโt even know it. You literally cannot hear it at all on its lowest setting. It also did a great job getting rid of a smell that was from something burned in my kitchen. So it is a very effective machine. I also now am wondering if the thing that I found fault with is actually a benefit to older people with arthritis if they cannot turn a knob, then just tapping the top might be very helpful to them. In fact, anyone with mobility issues could put this beside their bed and just tap it at night in the dark and it would be easy to use for them. Because it is silent, it will not work for you as a white noise machine. Iโm now going to add a star. Xo
A**D
Blueair is hands down the best.
Put this next to any other air purifier around the same size and price, no contest. I just returned a LeVoit I bought for the same price. Boy was that dumb. Louder than hell, super weak air flow, and smelled like toxic plastics. It was absolute CRAP. This Blueair is very quiet, has amazing air flow, smells like clean air, and looks SO much classier to boot (Scandinavian styling). I have another bigger Blueair in my office. It's been going for years (+ filter changes). Still works perfectly. Sometimes you get what you pay for. But other times, even when you pay the same, you don't. So shop smart. There's a reason good brands are good and cheaper ones aren't!!
N**I
Quiet and efficient
I wish we had one one these in every room in our house. Our pets are shedding now in the summer heat and the BlueAir purifier picks up not only dust and pollen but also fur and pet dander. This guy is worth every cent we paid for it.
G**Y
So quiet and no bright lights!
I absolutely love this air purifier! While it doesnโt have Wi-Fi, that hasnโt been a drawback, The Wi-Fi models were more expensive and for larger areas than I needed, so this one was the perfect fit for my space and budget. One of my favorite features is that the bright white power light doesnโt stay on all the time. If youโre sensitive to light while sleeping, this is a huge plus. Itโs also impressively quiet while still moving a surprising amount of air. I have asthma, and Iโve already noticed a difference in my breathing since using it. Overall, Iโm extremely happy with this purchase and would definitely recommend it.
O**K
"Interesting" Pre-Filter concept
As far as doing the job - removing dust and pollutants from the air - it pretty much works like most other "air purifiers" available with HEPA filters. The design is a bit stupid. I thought the fabric (with a choice of colors) that fit around the bottom portion was for looks. I was surprised when I realized it was the prefilter. So all the larger particulates and dust sit on the outside of the unit until you decide to take it off and wash it. I found that all that collected material didn't want to stay put there - especially if you pick up or move the unit - the prefiltered material comes off to hopefully be prefiltered again. Removing this outside fabric isn't easy without getting your fingers into the HEPA filter that it covers, and putting it back on can be a bit of a battle. Unless you buy a second fabric prefilter the unit is out of service until you can wash and dry it unless you run it without a prefilter. Nicely the fabric for the prefilter comes in a wide choice of two colors - I chose to get the other one for variety, lol! Your home decorator may find that ruins their carefully thought-out color scheme for the room - not that the two choices are all that different. I was hoping for maybe something in a bright red as a contrast to the blue or grey offered, but no such luck. When they say you have a choice in colors it's sort of like the old Ford automobiles that advertised you could buy them in any color as long as it was black. Criticizing the fabric colors is a bit picky - it's the idea of the prefilter open to the air as the outside cover for the HEPA filter, the difficulty of removing, washing, drying then putting it back on while the filter is unusable that's stupid. Having a reusable prefilter does save buying a new one every time it gets dirty. Whether the trade-off for that is worth it is a personal choice. It's also one I wasn't aware of when I bought it. Much is made in the literature (instructions) of the Scandinavian design of the filter invoking that clean snowy air. I think a better design would have been more useful. It's just a round HEPA filter covered in removable fabric acting as the prefilter, with the entire removable plastic top portion just where the fan sits. Oh, I almost forgot - I'm also not wild about the power cord entering the unit near the top - where the fan is - making keeping it out of the way wherever you put the thing a pain. Having it enter at the bottom and running it inside to the fan would make more sense, which would keep the thing from falling over if the cord gets pulled. All in all, it's cute and different from the rest of the HEPA air filter choices. It does the job. Putting style over function just to be different, making the prefilter the outside covering, and needing to either buy a second prefilter or have the unit out of action while you wash and dry the prefilter before replacing it is where it loses stars in my rating.
U**E
Efficace, silencieux la nuit, je lโadore, sauf pour le bouton du dessus
Le but de cet achat รฉtait initialement destinรฉ ร purifier lโair de ma chambre lโhiver, lorsquโil fait trรจs froid et que les fenรชtres sont collรฉes, ou ร certaines pรฉriodes du printemps, lorsquโil y a trop de pollen dans lโair pour pouvoir aรฉrer. Jโai reรงu cet article parfaitement protรฉgรฉ et avec un emballage du fabricant que jโai trouvรฉ astucieux. Une fois reรงu, jโai immรฉdiatement mis en fonction ce purificateur dโair, afin de vรฉrifier sโil รฉtait en รฉtat de marche. Mise en marche : Grรขce au mode dโemploi redirigรฉ aussi en franรงais, la mise en marche sโest faite facilement. Je suis satisfaite dโavoir pu lire les explications dans ma langue (je suis francophone). En appuyant une fois sur le bouton situรฉ sur le dessus, cโest le mode silencieux pour la nuit ou le repos; en appuyant deux fois, cโest le mode normal; en appuyant trois fois, cโest le mode ร toute puissance. Observation de ce processus : Il nโy a pas de bouton qui semble sโenfoncer, donc parfois je frรดle le dessus et je parviens facilement ร changer de mode, parfois il faut davantage appuyer. Je nโai pas rรฉussi ร comprendre oรน se situe le ยซ capteur ยป sโil y en a un. Ce serait le seul point nรฉgatif que jโaurais ร signaler. Pas de tรฉlรฉcommande pour ce premier prix, cela me convient parfaitement pour ma chambre. Cโest suffisant pour mon usage. Rรฉsultat de la filtration : Jโai laissรฉ fonctionner le purificateur environ 1h ou 2h (durรฉe au hasard), puis je suis retournรฉe dans ma chambre. Cโest incroyable la sensation de frais que jโai ressentie! Jโai senti immรฉdiatement la diffรฉrence, au point que jโai dรฉcidรฉ de mโen servir encore dรจs maintenant (pas uniquement pour lโhiver), tant jโai รฉtรฉ contente, ravie et impressionnรฉe du rรฉsultat. Usage en mode silencieux : Bien que je sois trรจs sensible au bruit en gรฉnรฉral, jโai dormi plusieurs nuits avec le purificateur dโair en action en mode silencieux. Et cela sโest trรจs bien passรฉ, ร ma grande surprise. Mon confort respiratoire sโest nettement amรฉliorรฉ grรขce ร cet appareil. Autres modes : Le mode normal est supportable en journรฉe, mais peut-รชtre pas de nombreuses heures consรฉcutives si la personne reste dans la piรจce. Trรจs bonne efficacitรฉ rapide. Le mode en toute puissance est trรจs bruyant, donc ร utiliser lorsque cโest temporaire. Personnellement, je lโai utilisรฉ lorsque jโai changรฉ mes draps pour les laver, tout en ayant aรฉrรฉ avant ou aprรจs. Si je lโutilise, je ferme la porte de la chambre. Par contre, bien que je sois ravie de mon achat, jโai faussement cru quโil y avait un affichage de la qualitรฉ de lโair avec un voyant lumineux. Je me suis mรฉlangรฉe avec les photos que jโai consultรฉes. Donc il serait souhaitable dโindiquer quโil nโy a pas de tรฉlรฉcommande, ni de connexion avec le tรฉlรฉphone, ni dโaffichage de la qualitรฉ de lโair. Cet appareil me convient parfaitement, ร ceci prรจs que jโaurais peut-รชtre prรฉfรฉrรฉ investir dans le modรจle juste au-dessus qui a le voyant de la qualitรฉ de lโair. Conclusion : Je suis trรจs satisfaite de mon achat, en dรฉpit de la difficultรฉ que jโai parfois ร savoir appuyer correctement sur le dessus (jโy parviens toujours). Selon notre budget, nous investisserons possiblement dans un second modรจle de cette marque spรฉcialisรฉe, qui aurait un voyant indiquant la qualitรฉ de lโair. Je dois prรฉciser quand mรชme que jโai choisi cette pour ses ยซ compรฉtences ยป, et ce modรจle parmi la gamme selon la superficie de ma chambre et le prix abordable du Vendredi fou. Bref, merci ร la marque dโexister au Canada. Soyez bien alertes sur les comparaisons de modรจles. Enfin, je dirais que ce modรจle serait parfait dans une chambre, que ce soit pour un enfant ou un bรฉbรฉ ou des adultes, ou bien dans une petite piรจce destinรฉe au tรฉlรฉtravail. Bon magasinage!
T**N
Love It
My Blue Heeler sleeps with me. Iโm allergic to dog dander. Iโve relied on Reactine and steroid eye drops (itchiness). Have not used either since getting this. Ensure you close your bedroom door and try to put it in a central spot. Low and med setting are very quiet. High setting a little too loud. I use med and it works great. Filters are a good price as well, something you need to consider when buying a purifier. This company has 3 different purpose filters you can get. Machine comes with the standard filter. Also watch for the micron filtering rating. This one goes down to 0.1 micron. Forget the ones that only go to 0.3 microns as that is to big of an air particle for good clean air.
O**.
Great but on the lower quality side
Good unit but I expected it to be on the lower quality side and it is. You feel it has lighter and slightly less quality parts. The unit was to use in my machine room in the basement so the fact that it is louder than it's siblings (higher quality models) is fine for my use. After only one day of usage, the fan bearing started to make a squeaky noise ... it comes and goes, but I expect it to get worse over time. I bought this unit at the lower price knowing where it would be used. If you don't have to sleep with it in your room then it is still a very good buy. I started to have a moldy smell in my basement and this got rid of the issue fast, on full blast.
A**R
Excellent Blueair 511.
Excellent. Does a great job. Bought it to clean air when I'm 3d printing. With it on, now I don't notice the smell of the filament like I did without one.
M**F
Quiet air purifier
This air purifier keeps the air in my daughter's room clean. We have smokers in the adjacent unit to us and the smell drifts into her room. This unit gets rid of that smell efficiently . It is quiet on the lowest setting but does get noisy when you turn it up. The good thing is we usually only need on the low setting
Trustpilot
2 days ago
2 weeks ago