Customer Reviews

Blueair 450E HepaSilent Digital Air-Purification System

5 star:		(8)
4 star:		(2)
3 star:		(1)
2 star:		(0)
1 star:		(0)

 

 

I have this air purifier for a few weeks now and in general I am very satisfied. I like the rugged, all metal case construction, and the very powerful fan that can really move the air around when you want it to (as opposed to some other purifiers which produce rather feeble air flow). Operation is simple and straightforward.

Here are some caveats though: The first unit I purchased had some slight rattle coming from the fan in silent mode. I returned that and it was fixed with a replacement unit. Also, the circuit boards in both the first and second unit I got emitted some quite noticeable "new computer smell" for the first couple days of operation. After about a week of use this was gone though. If you are sensitive to this kind of electronics smell you might want to run the unit for a few days in a different room before moving it to your bedroom. The quiet mode is very quiet but still ever so slightly audible (my wife is still bothered by it at night when the unit is close to her side of the bed), I wish the unit had an even slower, quieter mode.

Customer service was very helpful and went to great lengths to resolve questions and issues I had.

I should start with the fact that everyone in our household has allergies, even the dog I think, but that had not been confirmed. Currently we have the Blueair units in all the bedrooms and family room. The best thing about Blueair units is they work! We really feel a difference. Before getting Blueair my wife was not able to sleep thru the night. She would get congested and her throat would get dry so she kept waking up to drink water. Whatever was giving her trouble is now gone from the air and she is finally able to get a good nights sleep.
Outside the fact that this unit cleans the air, I do also like that it is steel construction ( I did a lot of research and that is hard to find), its quiet!!!, and its energy efficient. This model also comes with interesting electronics. It has a handy little sensor on the side of the machine that actually measures particles and odors. I like that a lot because I can set it on Auto mode and it does all the speed changing by it self. Definitely takes the guess work out of what speed to run it on. As for warranty, the warranty card says mail in for free 5 year warranty.

We have this Blueair silent product in our bedroom and it is great! If I stay somewhere else without the Blueair I notice allergies.
Blueair quietly cleans the air in our room, and cuts back on the dust in our old home! If we don't run it we notice dust.
On the highest setting it makes a slight but pleasant fan sound, but you are only to run it on high for a little while for example before going to bed. Then, turn it down a notch or two, and you will have uncongested sleep, and less allergy symptoms in the morning!!
It is worth every penny for the relief!!!

We have had this Blueair silent air purifier for a couple years now and love it! My wife and I both have allergies and we run it in our bedroom every night. It is so quiet in fact that sometimes we forget to switch it off in the morning!
We live in a major city, which is very polluted.

It helps very much with dust and allergies. In fact, if I am having a really bad allergy attack (spring or summer after mowing the grass for example), I can go in my room, turn on the Blueair on high, and in a couple minutes my head and ears clear, my chest relaxes and the old "allergy headache" goes away.
This thing is better and faster than taking medicine!

Blueair customer service has been very responsive as well! When we order filters they always arrive even faster than promised.

Keep the filters changed, wipe off the outside from time to time, and you will enjoy clean air and fewer allergy headaches too!

I researched air purifiers & bought one for my son, who has battled respiratory issues since he was 2 wks old, almost 40 years ago.

After a nasty sinus infection that lasted 7 weeks & required 3 anti-biotics, I purchased this purifier for myself. It has made a HUGE difference. I no longer wake up with my right sinus stuffed every morning. I had forgotten how nice it is to breathe & have all that oxygen to increase my energy. VERY QUIET.

What a blessing!

After extensive reviewing of different air cleaners I settled on this one. It is a little expensive but well worth it. It just cleans the air of all smells. During the Superbowl one of my guests ate too much chili and (Ahem) passed gas. 2 seconds later this automaticly baby turned on and BAM all gone. Everybody cracked up. Amazing

The strength of the Blueair 450E is its quiet operation (claimed to be only 27 dB on the lowest setting). On the two lowest speeds the noise levels are very modest. The highest setting, at which the air flow ratings are measured, is noisy, but that is true of all HEPA filters. The system includes gas and particle sensors (poorly labeled as "smell" and "dust" sensors) with a primitive readout of 1, 2, or 3 bars; the display also includes a frowning face at 3 bars and a smiling face at 1 bar--I find this type of labeling annoying but have not allowed it to affect my rating). The sensors permit an auto mode that adjusts the fan speed so that the room is kept clean. The sensors do seem to correspond moderately well with the air quality, but the auto mode has a tendency to kick into high gear for brief periods when a longer burst on the level 2 setting would suffice. Given that the level 3 setting is quite a bit louder than the other two this is a flaw that could easily have been avoided. (For example an auto mode that is optionally limited to the two lower speeds would be convenient for night time when one is trying to sleep.) This purifier is well constructed and should last for many years. The most significant flaw is that the filters must be exchanged every 6 months and the filters with activated carbon costs $120 each--this makes the Blueair maintenance costs among the highest for models in this class of air purifiers. I have not tried operating the purifier with the cheaper HEPA-only filter (which costs half as much as the "smoke-stop" filters) and I wonder how well the auto mode will function when using a filter that only removes particles (you need activated carbon to remove gas contaminants so the particle filters don't seem to have any way to remove the gas contaminants that the sensor detects).

HEPA filters can, in principle, remove 99.97% of particles that are 0.3 microns in size from the air. The actual performance however depends strongly on the quality of the air purifier because if air leaks around the filter you won't get anywhere near 99.97% purification. I have seen independent tests indicating Blueair purifiers achieve 98% efficiency whereas some premium brands only have scores of ~80-90%. Of course, with multiple air changes per hour, even 80% filtering efficiency will ultimately get the job done, but the higher ratings will do a better job for a given amount of air flow.

If you as concerned about noise levels and not especially concerned about replacement filter costs the Blueair 450E deserves strong consideration. If you want low operating costs and can tolerate high noise levels there are more cost effective options out there.

I really love this, on 1 you can't hear it at all, on 2 it's not as loud as the heater or air conditioner and 3 is a little louder. I have this in my bedroom and I wish I could afford to get one for the living room. I know I sleep better, so it must be helping with the allergies!

I live in an old house converted into a duplex, I don't smoke, my downstairs neighbor is a chain-smoking cigarette hag. In the winter when the windows are closed up the awful smoke smell from the downstairs apartment is strong enough make my hair and all my clothes stink, and my eyes and throat burn. I tried several other (cheaper) air purifiers but none worked very well, so after much research I decided to try a much higher quality purifier and bought a Blueair 450 with a smokestop filter. I'm pleased to say that it works! It actually works! It is much quieter even on it's highest speed than cheaper purifiers, and it actually takes most of the cigarette stench out of the air. In this case you definitely get what you pay for. The replacement filters are unfortunately expensive, but it's worth it not to smell like a stinky ashtray anymore.

I am extremely pleased with the Blueair 450E. It is very quiet and very effective. It is so sensitive in Auto mode that punching a dusty pillow on the other side of a 15-foot room will soon start it running. So, I just keep mine set to Auto.