Blue Signature™ Large Midnight

Name: Blue Signature™ Large Midnight
Brand: Blueair
SKU: 112930
Price: 135.00 USD
Availability: InStock

Air Purifier, Extra-large Rooms

$135.00 USD~~$337.49 USD~~

The most powerful, compact air purifier you can get.

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 Midnight and 1 Particle & Carbon filter

Customize with exclusive accessories
Motion activated touchscreen display
RealTrack Technology®
Doubles as a table-top

Additional Features

Wi-Fi connectivity for remote control Yes
On/ off timer Yes,
Speed control options 1 - 2 - 3 - 4 - Auto - Night
Integrated air sensors Yes

Shipping & Warranty

Free & fast shipping
30 day home trial
Free extended warranty

Why choose Blue Signature™?

Doubles as a table-top & much more

Make it yours. Choose from curated pre-filter colors and accessories that elevate your space.
Dynamically displays your air quality

See your air quality at a glance. The motion-activated display responds to your preferences in real time.

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

1 / 2

Smart control in the highly rated & newly upgraded Blueair app

Effortlessly take control of your air

Select a fan speed, let auto or night mode take over & keep settings secure with display lock.
Customize schedules to fit your lifestyle

Set your preferred times for enhanced air purification, so you can wake up to fresh air, keep your home clean during peak hours, and save energy when you're away.
Smart filter lifetime tracking

Tracks the filter lifetime based on pollutant levels and alerts you when it’s time to replace your filter.

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

Technical Specifications

Dimensions(HxWxD)

17.2" x 15.5" x 15.5"
Product Weight

13.2 lbs
Energy Consumption

3.5-42 W
Sound level

23-55 dB
Air outlet

Side
Recommended room size

705 ft²
Air changes per hour (ACH)

4.8
Clean air delivery rate (CADR)

Pollen 450 cfm
Dust 434 cfm
Smoke 455 cfm
Number of filters

1
Speed control options

1 - 2 - 3 - 4 - Auto - Night

FAQ

What is the warranty for Blue Signature™?

How often do I need to change the filter?

You filter will last up to 1 year thanks to our unique patent-pending design & proprietary RealTrack algorithm that accurately calculates the remaining filter lifetime based on fan speed, usage time, and pollution levels.

When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you. Alternatively, connect to the Blueair app to receive an alert and easily re-order at the touch of a button.

What are the noise levels?

Blue Signature™ operates quieter than a whisper on low at 23 dB and is no louder than 55 dB on high fan speed.

What room size is best?

To achieve maximum performance we recommend placing your unit in a room around 705 ft² so your air purifier can clear the air at the AHAM recommendation of 4 times every 12.5 minutes. The Blue Signature™ will clean up to 3,385 ft² in 1 hour.

Product reviews from Blueair

Reviews collected on the original Blueair website.

4.6

Rated 4.6 out of 5 stars

Based on 289 reviews

Rated out of 5 stars

233

Rated out of 5 stars

87%would recommend these products

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289 reviews

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ES
Elaine S.
Verified Buyer
1 hour ago
Reviewing
Blue Signature™ Medium Nordic Fog
Rated 5 out of 5 stars
Blue Signature™ Medium Nordic Fog
This is working great in our home. It amazes me how light the whole air purifier is.
Was this helpful?
CA
Carl A.
Verified Buyer
8 hours ago
Reviewing
Blue Signature™ Small Knicks Limited Edition
Rated 5 out of 5 stars
Josh Hart special
Love the Knicks Logo highlight !
Was this helpful?
KG
Kim G.
Verified Buyer
2 days ago
Reviewing
Blue Signature™ Large Nordic Fog
Rated 5 out of 5 stars
Efficient and Effective
We bought the Blue Signature air purifier to help us with our indoor air during the summer when we were experiencing significant wildfire smoke. The product arrived promptly and got to work on our poor air quality. Very happy with this product.
Was this helpful?
DV
DEBRA V. R.
Verified Buyer
5 days ago
Reviewing
Blue Signature™ Large Nordic Fog
Rated 5 out of 5 stars
Large Nordic Fog
Excellent
Was this helpful?
KM
Ken M.
Verified Buyer
1 week ago
Reviewing
Blue Signature™ Small Nordic Fog
Rated 5 out of 5 stars
Very pleased
The unit works as per the description in the ad. Very quiet, easy to use, night mode is great.
Was this helpful?

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+

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Blue Signature™ Large Midnight

Why choose Blue Signature™?

Doubles as a table-top & much more

Dynamically displays your air quality

7 stages of filtration,
10x more odor removal

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

“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.”

Smart control in the highly rated & newly upgraded Blueair app

Effortlessly take control of your air

Customize schedules to fit your lifestyle

Smart filter lifetime tracking

Feel the difference with Blue Signature™

95%

89%

Proud to be a Certified B Corp

Technical Specifications

FAQ

Blue Signature™ Large Midnight

Why choose Blue Signature™?

Doubles as a table-top & much more

Dynamically displays your air quality

7 stages of filtration, 10x more odor removal

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

“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.”

Smart control in the highly rated & newly upgraded Blueair app

Effortlessly take control of your air

Customize schedules to fit your lifestyle

Smart filter lifetime tracking

Feel the difference with Blue Signature™

95%

89%

Proud to be a Certified B Corp

Technical Specifications

FAQ

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