The Blue Pure 511 air purifier combines powerful filtration with a sleek, compact design perfect for small spaces. Whisper-quiet, energy-efficient, and easy to use, it delivers cleaner, healthier air with minimal maintenance.
Quickly cleans 189 ft² in 12.5 minutes and up to 413 ft² in 30 minutes.
Three fan speeds quickly removes pollutants such as viruses, bacteria, dust, and odors.
Consuming as little energy as a single lightbulb
Variety of washable pre-filter colors designed to seamlessly blend into your space.
Powerful yet whisper-quiet
Simple one button control
Place anywhere with 360˚ design
Additional Features
On/ off timer FALSE
Speed control options1 - 2 - 3
Integrated air sensorsNo
Shipping & Warranty
Free & fast shipping
30 day home trial
Free extended warranty
Why choose Blue Pure 511?
Compact & Space-Saving Design
Sleek and small, the Blue Pure 511 fits perfectly in tight spaces like nightstands and shelves, making it ideal for bedrooms, dorms or cozy living areas.
Simple, One-Button Control
The minimalist one-button control interface is all you need to purify your space—keeping things simple so you can focus on enjoying cleaner air.
Whisper Quiet
Engineered to purify the air without disturbing your peace, this air purifier runs so quietly you’ll barely notice it’s on—perfect for restful sleep.
Sleek Scandinavian design
Variety of washable pre-filters are designed to seamlessly blend into any space
“It’s a great performer for a machine of its size and power. It’s also extremely quiet, staying below our 50-decibel limit for comfortable TV viewing and sleeping, even on high...its display goes dark automatically, so this machine won’t be a distraction when you’re trying to nap or work.”
Wirecutter Best Air Purifiers of 2024
4 layers of filtration remove 99.97%¹ of airborne pollutants
HEPASilent™ technology combines electrostatic and mechanical filtration to capture tiny airborne pollutants like pollen, dust and smoke, faster* and quieter⁴ than traditional HEPA.
Free and fast shipping
30 day home trial
Extended warranty
FAQ
What pollutants does the Blue Pure 511 filter out?
Our HEPASilent™ dual filtration technology removes 99.97%¹ of airborne particles down to 0.1 microns, ensuring pollen, cooking odors, smoke, dust, pet dander, mold, chemicals, allergen matter and even tiny particles such as viruses and bacteria², are captured with minimal noise and energy consumption.
What room size is best for the Blue Pure 511?
To achieve maximum performance we recommend placing your Blue Pure 511 in a room around 189 ft² room so your air purifier can clean the air at the AHAM recommendation of 4 times every 12.5 minutes.
What are the noise levels of the Blue Pure 511?
Operates quieter than a whisper on low at 22 db and is no louder than 44 dB on high fan speed.
How often do I need to change the filters?
We recommend replacing the filter on your Blue Pure 511 every 6 months. When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you.
What is the warranty for the Blue Pure 511?
Register your product to extend the 1-year warranty to a 2-year warranty.
Technical Specifications
Dimensions(HxWxD)
13.4” x 7.9” x 7.9”
Product Weight
4.2 lb
Energy Consumption
16 W
Sound level
24-49 dB
Air outlet
Top
Recommended room size
189 sq. ft.
Air changes per hour (ACH)
4.8
Clean air delivery rate (CADR)
Pollen 123 cfm Dust 123 cfm Smoke 122 cfm
Number of filters
1
Speed control options
1 - 2 - 3
Product reviews from Blueair +
Reviews collected on the original Blueair website.
Powerful yet whisper-quiet
Simple one button control
Place anywhere with 360˚ design
Free & fast shipping
30 day home trial
Free extended warranty
