Customer reviews from www.blueair.com
Blueair - Blue Signature Smart Air Purifier for Large Rooms up to 3385 ft - Nordic Fog
Average customer rating
4.7
(145 Reviews)
Rating breakdown 145 reviews
5 Stars
125
4 Stars
5
3 Stars
11
2 Stars
2
1 Star
2
92%of customers recommend this product.
(
73 out of
79)
Customer Reviews for Blueair - Blue Signature Smart Air Purifier for Large Rooms up to 3385 ft - Nordic Fog
Posted by: Aven
Verified Purchase:Yes
This is my 6th Blueair and by far the best. Highly recommend. Impressive!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Best air purifier
on October 22, 2025
Posted by: Aven
from US
This is my 6th Blueair and by far the best. Highly recommend. Impressive!
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Amazing
on October 16, 2025
Posted by: Olive
from US
Wonderful, highly recommend — I own a couple already
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Olive
Verified Purchase:Yes
Wonderful, highly recommend — I own a couple already
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Fancy
Gender:Female
Verified Purchase:Yes
This is by far the very best air purifier. It cleans the air in my large space quickly and has my apt always smelling clean. I love it. I plan on buying one.of the sleep collection for the bedroom.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: BruceLee
from Los Angeles, CA
Verified Purchase:Yes
Simply put it looks great, works well, and it’s like having a cute stationary robot in our room protecting us from harmful pollutants. The night rider style light that moves and changes color during cleaning is nice and reassuring. The app works nice however I’d like it to store all time data in memory for when the app updates the history of the unit. Sometimes you’ll get a gap in measurement.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
2
Beautiful, but with fatal flaws
on October 1, 2025
Posted by: RCBR
Gender:Female
It looks great, I love that it tracks air quality in the app (and the app is easy to use) but it has some fatal flaws if you intend to use it in a bedroom. Firstly, the blue light cannot be turned off unless the device is in auto mode. Turning the light down in the app to ‘0’ still leaves it on. This is disturbing at nighttime if you need to use anything stronger than night mode (I.e. we crack a window open for CO2 but often get hit with sudden smoke. Secondly, there is a huge difference between fan speed 1 (very quiet) and 2. At very low speeds the device makes a mild clicking sound rather than a ‘smooth’ sound like a previous purifier I had. When turned up to 2 (and also mask this) though it’s loud enough to be disturbing. I.e. over 40 decibels. Fan speed one doesn’t seem strong enough though for smoke ingress. This is clearly a device suited only to a lounge space where lights and the noise of a medium mode don’t matter.
For the team, improvements would include the ability to turn the blue light off completely (this seems like a real design flaw) and less of a jump between fan speeds 1 and 2 to give more options at the lower end.
No, I would not recommend this to a friend.
Response from www.blueair.comBy Blueair Team, Blueair, October 1, 2025
Thank you for sharing your detailed feedback on the Blue Signature™ Nordic Fog. We’re glad to hear you enjoy the design and app experience. For nighttime use, the blue light can be dimmed or switched off by setting the unit to Night Mode, or by adjusting the display brightness in the app, which lowers both the top display and front indicator. Since the clicking sound you described isn’t expected, we’ve reached out directly to better understand what’s happening with your unit.
Written by a customer while visiting www.blueair.com
Customer Rating
5
Love the Blue Signature
on September 30, 2025
Posted by: bluSig
Been using air purifiers for years, including several different earlier Blueair models but I wanted to upgrade from the Classic look. The Signature exceeds my expectations in both effectiveness and beauty. It’s powerful, the digital air monitor is really useful and easy to use. Also super happy that I added the wooden legs to my order, giving it a cool, modern look
Written by a customer while visiting www.blueair.com