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Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
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Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
Blue Signature™ Large Nordic Fog
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Blue Signature™ Large

Air Purifier, Extra-large Rooms

4.7
Rated 4.7 out of 5 stars
4.7 Stars (205 Reviews)
Save 33%
Size: Large
One Time Shipment
  • 1 Air Purifier
  • 1 Particle & Carbon Filter
  • 1 Pre-Filter
Filter Subscription
  • 1 Replacement Filter
  • Save 15% on every filter
  • Pay when we send it
Customize Your Subscription
Select Filter
Choose Frequency
  • Subscribe & save 25% off your first filter

  • Rapidly cleans 705 ft² in 12.5 minutes & up to 3,385 ft² in 1 hour
  • 7 stages of filtration removes 99.97%² of airborne particles
  • 10x³ more odor removal with OdorFence Technology
  • Dynamic display that auto-adapts to enhance your air
  • Double the filter lifetime thanks to our patent-pending filter design
  • Smart features in the highly rated, newly improved Blueair app
  • Device comes with 1 pre-filter in Nordic Fog and 1 Particle & Carbon filter
  • Customize with exclusive accessories
  • Motion activated touchscreen display
  • RealTrack Technology®
  • Doubles as a table-top

Why choose Blue Signature™?

7 stages of filtration,
10x more odor removal


HEPASilent filtration technology captures at least 99.97%² of tiny airborne pollutants down to 0.1 microns while OdorFence Technology captures common odor gases and breaks them down. It’s deep, effortless clean air you can feel, and smell, every day.

"The Blueair Blue Signature finally gives design-conscious homeowners an air purifier they won't want to hide."

YANKO DESIGN

“I tested it with kitchen odors while cooking, and within about 20 minutes of running the air purifier, I could smell little to nothing. I find that astonishing. I've used other air purifiers before, but this one does the trick.”

Jake

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Smart control in the highly rated & newly upgraded Blueair app

Feel the difference with Blue Signature™

95%

felt it contributed to a
healthier living environment⁵

89%

prefer it over any
other air purifier⁵

Feel the difference with Blue Signature™

Proud to be a Certified B Corp

As a B Corp, we’re part of a global community of businesses that meet high standards of social and environmental impact.

  • Free and fast shipping

  • 30 day home trial

  • Extended warranty

FAQ

Register your product to extend the 1-year warranty to a 3-year warranty.

4.7
Rated 4.7 out of 5 stars
Based on 205 reviews
Total 5 star reviews: 175 Total 4 star reviews: 14 Total 3 star reviews: 9 Total 2 star reviews: 3 Total 1 star reviews: 4
92%would recommend these products
205 reviews
  • JL
    Johana L.
    Verified Buyer
    Yesterday
    Reviewing
    Blue Signature™ Large Midnight
    Rated 5 out of 5 stars
    Really works!

    This is honestly the quietest air purifier I’ve ever had. It’s been so much better than other brands I’ve tried (including the big-name ones like Dys***). And the best part? It actually does what it’s supposed to do.

    I live in an apartment, and every time we cooked, the smell and smoke used to spread everywhere. Since getting this purifier, that’s no longer a problem. We just leave it on Auto mode, and it jumps into action the moment we start cooking.

    We’ve also realized there’s way less dust around the living room and bedrooms, which was a nice surprise. Overall, we’re really happy with it so far. I'm gonna buy another one exclusively for my baby's room since is very quiet.

  • MC
    Maryann c.
    Verified Buyer
    Yesterday
    Reviewing
    Blue Signature™ Large Nordic Fog
    Rated 5 out of 5 stars
    Cat hair has disappeared!

    I placed my unit in my family room and all the cat hair and dust has disappeared!

  • MW
    Matt W.
    Verified Buyer
    1 week ago
    Reviewing
    Blue Signature™ Large Nordic Fog
    Rated 5 out of 5 stars
    Perfect

    It has all the features that I wanted and does a fantastic job of eliminating odors, which is what I was hoping for. It increases speed as needed and I really like the added benefit of AirSense, which refreshes air twice a day. It looks great and doubles as a table. Very well executed.

  • CA
    Christine A.
    Verified Buyer
    1 week ago
    Reviewing
    Blue Signature™ Large Midnight
    Rated 5 out of 5 stars
    Absolutely necessary

    Love this purifier. I know it’s doing the lords work when I turn it off and smell things I otherwise got used to (sea grass rugs and a dog). I put it in a room that was freshly painted and the VOCs that had been lingering were eliminated within the day.

    I like the size and look of the signature as well, especially with other color options for the cover. It makes it blend into the space and you can put something decorative on top if you want. Otherwise it looks great as is. Quiet too!

    I’m not sure the auto feature will be for me; it says it detects clean air in spots where I just don’t agree. But perhaps it’s looking for pretty bad air from nearby smoke or something and not just small odors.

  • SL
    Sheina L.
    Verified Buyer
    2 weeks ago
    Reviewing
    Blue Signature™ Large Nordic Fog
    Rated 5 out of 5 stars
    Blue signature

    We can feel the difference at home. So far so good!

¹ Based on high-speed CADR by volume vs. similar competitive models

² Tested on PM2.5 up to 90 minutes.

³ Tested on Acetaldehyde gas vs. similar leading competitor filter

⁴ Tested on bacteria (S. aureus, K. pneumoniae, P. aeruginosa), virus (MS2) and mold allergen (A.niger) with a minimum reduction rate of 99.9% in 60min. Blueair does not claim to prevent transmission of airborne illnesses. Not tested on SARS-COV-2.

⁵ Based on consumer testing of 38 users over the course of 4 weeks

⁶ Compared to Blue Pure 211+