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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 (208 Reviews)
Save 22%
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
  • Most Popular

  • 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 208 reviews
Total 5 star reviews: 177 Total 4 star reviews: 15 Total 3 star reviews: 9 Total 2 star reviews: 3 Total 1 star reviews: 4
92%would recommend these products
208 reviews
  • LD
    Latifah D.
    Verified Buyer
    4 hours ago
    Reviewing
    Blue Signature™ Large Nordic Fog
    Rated 5 out of 5 stars
    My Blueair upgraded my environment

    Everyday I look forward to challenging the personality of my air purifier. She rises to the occasion everyday as quietly powerful and effortlessly efficient. She’s an energy star powerhouse that works hard every day while she never fails to translate into low costs everyday. Within hours of cutting on my filter the air was fresher with an excellent reading. Everyday I cook it continues to clean the air restoring excellent air quality from smoke and odor. It was a surprise to me that within two weeks of bringing her into my home, I have been sleeping far better through the night,

    Its modern design meshes well with my home decor. It performs with precision set apart from other manufactured models. Everyday it continues to deliver the same high level performance without demanding attention. I forget it’s here until I leave home and return to fresh air,

    I love that she accomplished upgrading my environment’s air quality, my health, and my everyday comfort, Blueair isn’t just a purchase. My big blue is an investment in how I live.

    I would like to express interests in becoming an affiliate to promote the product.

  • KM
    Kimberly M.
    Verified Buyer
    1 week ago
    Reviewing
    Blue Signature™ Large Midnight
    Rated 5 out of 5 stars
    Excellent

    Cleans the air great

  • JL
    Johana L.
    Verified Buyer
    1 week ago
    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
    1 week ago
    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
    2 weeks 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.

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+