7 stages of filtration, 10x more odor removal
Choose from 6 pre-filter colors & 2 base accessories
Blue Signature™ Large
HEPASilent™ air purifier for extra-large rooms with fast whole-room cleaning and advanced odor removal from OdorFence Technology.
Color: Nordic Fog
Fast & free shipping
30-day returns
Extended warrantyWhy you’ll love it
The most powerful, compact air purifier you can get. Your all-in-one solution for cleaner air, fresher rooms, and total everyday well-being.
- Quickly cleans 705 ft² every 12.5 minutes & 3,385 ft² in 1 hour
- Helps clear stubborn odors across the whole roomKeeps up with changing air quality automatically
- Customizable design lets you make it your own
Accessories designed to fit your style 
Motion activated touchscreen display 
Accurate filter lifetime tracking 
Doubles as a table-top
Features & Technologies
- HEPASilent™ filtration captures 99.97% of tiny airborne particles
- OdorFence Technology™ provides powerful odor removal
- Smart sensors track your air quality in real time
- Auto Mode adjusts fan speed based on your air quality
- Night Mode keeps cleaning quieter while you sleep
- Eco Mode saves energy when air quality is good
- Motion activated controls appear when you need them
- RealTrack Technology® accurately tracks filter lifetime
- Wi-Fi connectivity gives you easy app control
Tech specs
- 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
- Number Of Filters 1
Product Notes
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+
7 stages of filtration, 10x more odor removal
Choose from 6 pre-filter colors & 2 base accessories
Why choose Blue Signature™?
Make it yours. Choose from curated pre-filter colors and accessories that elevate your space.
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
Smart control in the highly rated & newly upgraded Blueair app
Select a fan speed, let auto or night mode take over & keep settings secure with display lock.
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.
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™
Feel the difference with Blue Signature™
felt it contributed to a healthier living environment⁵
prefer it over any other air purifier⁵
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™?
Register your product to extend the 1-year warranty to a 3-year warranty.
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.
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Originally published on Blueair US
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