Blue Signature™ Medium

Name: Blue Signature™ Medium Midnight
Brand: Blueair
Price: 269.0 GBP
Availability: InStock
Rating: 4.5 (208 reviews)

Air Purifier, Medium Rooms

4.5

Rated 4.5 out of 5 stars

208 Reviews

Size: Medium

Color: Midnight

Powerful filtration. Advanced odor removal.

Rapidly cleans 46 m² in 12.5 minutes & up to 209 m² in 1 hour
7 stages of filtration removes 99.97%² of airborne particles
Advanced odour removal with OdourFence 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

Customise 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, via Blueair App
Speed control options 1 - 2 - 3 - 4 - Auto - Night
Integrated air sensors Yes

Shipping & Warranty

Ship next day free
30 day home trial
Authenticity guaranteed

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 superior filtration and smart VOC sensing for 10x³ more odour removal

Smart VOC sensing continuously detects airborne gases and chemical pollutants in real time. HEPASilent filtration technology captures at least 99.97% of tiny airborne pollutants down to 0.1 microns, such as fine particles, dust mite allergens, pollen, bacteria, virus and mould allergens.⁴

OdourFence captures common odour 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 odours 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

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.
Customise 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.

Fast & free shipping
30 day home trial
Authenticity guaranteed

Technical Specifications

Filter Type

Particle & Carbon
Dimensions(HxWxD)

49cm x 30cm x 30cm
Product Weight

4.3 kg
Energy Consumption

3.5-42 W
Sound level

23-55 dB
Air outlet

Side
Recommended room size

46 m² (4.8 ACH)
Air changes per hour (ACH)

4.8
Clean air delivery rate (CADR)

Pollen 561 m³/h
Dust 525 m³/h
Smoke 545 m³/h
Recommended filter change

9-12 months
Number of filters

1
Speed control options

1 - 2 - 3 - 4 - Auto - Night

FAQ

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?

What room size is best?

4.5

Rated 4.5 out of 5 stars

Based on 208 reviews

Total 5 star reviews: 163

Total 4 star reviews: 12

Total 3 star reviews: 17

Total 2 star reviews: 6

Total 1 star reviews: 10

84%would recommend these products

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208 reviews

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HD
Hannah D.
Verified Buyer
4 minutes ago
Reviewing
Blue Signature™ Large Nordic Fog
Rated 5 out of 5 stars
Fantastic
I am very noise sensitive and this is very very quiet. The air now feels fresh and clean and I can feel it is going a good job.
Was this helpful?
RB
Rodney B.
Verified Buyer
4 hours ago
Reviewing
Blue Signature™ Small Nordic Fog
Rated 5 out of 5 stars
Blue Signature small
This unit works great for my bedroom. It replaces a Blue Air 311+ auto that stopped running after about 3 years. This new unit has several technological improvements. It is quiet and small so I don’t notice it’s in the room.
Was this helpful?
JB
James B.
Verified Buyer
16 hours ago
Reviewing
Blue Signature™ Large Midnight
Rated 5 out of 5 stars
Cleans the Air Quickly
Keeps an eye on the air quality and keeps it clean - no need to do anything except know that your indoor air is perfect! You can feel, smell, and tell the difference.
It removes farty teenage boy smells in a couple
minutes.
Was this helpful?
MB
Martha B.
Verified Buyer
2 days ago
Reviewing
Blue Signature™ Large Midnight
Rated 5 out of 5 stars
Martha B
Hoping it will work as well during wildfire smoke.
Was this helpful?
JB
Joseph B.
Verified Buyer
2 days ago
Reviewing
Blue Signature™ Medium Midnight
Rated 5 out of 5 stars
Smells like a winner
We bought this to supplement an older Blueair model which has been going strong for many years, following the numerous moorland fires in our area. The air was bad, particularly as it was also hot and we couldn't open the windows due to the smoke. The use of the purifiers drastically improved the air quality in our childrens' rooms such that we couldn't smell any smoke.
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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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