BLUEAIR Air Purifiers for Bedroom HEPASilent Small Room Air Purifiers for Home Air Purifiers for Pets Allergies Air Cleaner, Virus Air Purifier for Dust Baby Air Purifier for Nursery Blue Pure 511

A great budget purifier with AUTO feature!
Having an AQI sensor with an auto mode is pretty rare for purifiers at this price range. BlueAir is really cool for creating something inexpensive to be a set it and forget. I’ve tested and tried many different air purifiers and while I have a favorite already, this one really deserves its praises. For starters, I want to say this is definitely a bedroom-centric purifier and isn’t meant for larger open concept spaces (Opt for the 311 Auto for bigger area). The 411 auto is virtually silent on level 1. Level 2 is also pretty quiet but has a very gentle breeze sound (personally my fav for sleeping bc the white noise is calming). Level 3 definitely is a jump in sound but is good for brief quick air cleaning. Auto mode is pretty accurate with detection rate. I put out a candle that was relatively close proximity to the purifier and the sensor light turned red and gradually revved up to sift out the smoke. In another test, I blew out a candle that was further away from the purifier across the room. The sensor did take longer to begin revving up the fan (about 5 mins give or take) but nonetheless still managed to detect. I find dissipation of odors and smoke to be pretty decent. Today I was indecisive about outfits and tried on many diff things while looking in the mirror and I guess all the dust and lint kicked up and got the little guy revving up. All this to say, the AQI sensor and Auto Mode is great!Other positives:-low power consumption. It’s gonna be so inexpensive on your electricity bill. Only 10watts of power max!-stylish! The prefilters are very attractive I’m in a very modern minimalist space with black and whites and grays. The default pre filter it ships with fits perfectly! Diff decor? They have many different colors for you.I have to say, I doubted this thing for a bit because of its seemingly lacking power. It reminded me a lot of the Levoit Vista 200. However that model is awfully weak and not worth the money. I believe the reason why the Blue Pure 411 Auto works so efficiently well, is because it is 90% filter. There’s no plastic unibody or restrictive intake grills. Just fabric and filter. Because of this, less fan power is needed to pull in air through several layers of plastic holes and super dense materials. Pretty innovative and a true example of “less is more”. Highly recommend for those who want a stylish, efficient minimalist air purifier for a small space.

It simply works, and it’s fantastic
I never thought I’d need one of these, but my son has been getting stuffy at night for these past few months and it disrupts his sleep. This air purifier started working pretty much immediately. Even I didn’t realize how bad my allergies were til we started using this, and I breathe so much easier now. It has a “night mode” which just means the fan is lower and quieter, but we sleep with a fan anyway and like the noise. So we turn it all the way up for max effect during the night and just leave it running on the low setting during the day. We got the mini as our rooms are on the smaller side and it works exactly as I’d hoped it would. It’s also a nicely sized and cute machine. There are different color fabrics you can put over the outside which I plan on getting later on. It’s extremely simple to use and so lightweight I was actually worried about the quality, but it works so well and is totally worth the price point. Zero complaints about this machine. Will buy this one again if the need ever arises.

Quiet and Effective Air Purifier for Any Small Space
The Blueair Blue Pure 511 air purifier has been a fantastic addition to my home. It’s compact, sleek, and fits perfectly in a bedroom, nursery, or small living area. The design is modern yet simple, making it easy to blend into any space. Setup was straightforward—plug it in, and it’s ready to go.This purifier’s standout feature is its HEPASilent Technology, which combines electrostatic and mechanical filtration for top-notch performance. It captures dust, allergens, and even pet dander without making a sound. I noticed a difference in air quality within hours—my room feels fresher, and my allergies have significantly improved.Another big plus is how whisper-quiet it is, even on higher settings. It’s perfect for nurseries or bedrooms where noise can be an issue. The energy efficiency is impressive too, so you can leave it running without worrying about your electricity bill. Maintenance is simple, with a quick filter change every few months.If I had to nitpick, I’d say it would be nice to have a built-in air quality sensor, but for the price and performance, this purifier is excellent. Whether you need relief from allergies or just want cleaner air, the Blue Pure 511 is a must-have!

Works well to clear the air. Highest setting makes a nice white noise.
If you like quiet use first setting or if you like a little white noise use the third. It does a great job of clearing the air. I’ve had it a few months running several hours a day and had no issues. I have a cat and I can tell a difference in allergies.

My Blue Heeler sleeps with me. I’m allergic to dog dander. I’ve 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.

March 22, 2023, I am so happy I bought this BLUE Pure 411 Auto air purifier, just wish I had years ago! Full disclosure, I have severe indoor and outdoor allergies year round, post nasal drip and I have asthma. Needless to say I usually spend a lot of money on tissues, allergy medication, sinus rinse supplies and have to remove dust from my home daily and launder bedding every 3 days.Already I can breathe better, no coughing/wheezing, wake up with clear sinuses and haven’t even needed my allergy meds! It really clears out airborne odours (food/farts/sweat) and dust. It makes a huge difference for air quality especially when I am sleeping, no more snoring from plugged sinuses. I like the sound of a fan as it buffers noise from outside traffic or loud music/voices. So, I don’t find this loud at all, even on it’s highest setting and it’s always on high 24/7.I will update this review in 6 months and add further information based on my experience but so far it simply amazing and affordable!****UPDATE!***July 20, 2024 It’s been a year and three months! This little machine is a beast! I keep this one at my bedside. I have had it running on its highest air purifying function 24/7 since the day it arrived! It is only off while changing filters. I absolutely love it and when it is in stock I highly recommend buying it! I will be buying more of them for other rooms.I change my “inner round accordion ” filters every 3 to 6 months. I do recommend having extra filters both inner and outer just make sure they are for your specific machine. I have found that the non blue air versions of the cloth filters often do not fit well and some are made of materials that blocked the air purify function/suction. I did recently purchase a two pack of “inner” filters that are not “blue air” brand and they do fit but I will update in 3 to 6 months and let you know if they are good quality or not and provide the brand of the ones I bought. I do not think they are as good as the Blueair brand so far….I can see through the inner black part of the filter and that is not a good sign as large particles of dust and everything else smaller will be going through it instead of collected so don’t believe they are real hepa filters.I do find that the “red” light feature that indicates the filters need to be changed is not reliable so I simply make note on my chore calendar to change the filter. I have also noticed that the outer cloth filters need to be cleaned much more often. You can easily do this by vacuuming them with a hand vac or a shop vac. I have a lot of allergies to dust and asthma so I do clean mine every day or two with a quick vac of the hand vac and I either hand wash it or machine was it every two weeks by slipping it into a mesh lingerie bag and just toss it in with a load of washcloths and towels.I will be curious to know how well this machine works as we enter into Summer “forest fire season”. I will continue to provide updates with my experiences with this BLUE Pure 411 Auto air purifier! Take care and happy shopping!