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Blue Pure 511
Blue Pure 511
Blue Pure 511
Blue Pure 511
Blue Pure 511
Blue Pure 511
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Blue Pure 511
Blue Pure 511
Blue Pure 511
Blue Pure 511
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Blue Pure 511

Air Purifier, Small Rooms

4.3
Rated 4.3 out of 5 stars
62 Reviews

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 182 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

“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

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Why choose Blue Pure 511?

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.

Blue Pure 511

Technical Specifications

  • Dimensions(HxWxD)

    34 x 20.1 x 20.1 cm

  • Product Weight

    4.2 kg

  • Energy Consumption

    16 W

  • Sound level

    24-49 dB

  • Air outlet

    top

  • Recommended room size

    16 m²

  • 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

FAQ

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.

¹ Tested on PM 2.5 up to 90 mins

⁴ Noise refers to acoustic power at max. fan compared to Blue Auto models.

*Comparing CADR performance of Blueair models with mechanical and electrostatic filtration vs same models with only H13 HEPA mechanical filtration.

Note: CADR and room size values have been updated to meet new DOE standards. Website listings reflect the most accurate information. You may notice slight differences versus product packaging during the transition.

4.3
Rated 4.3 out of 5 stars
Based on 62 reviews
Total 5 star reviews: 43 Total 4 star reviews: 6 Total 3 star reviews: 5 Total 2 star reviews: 5 Total 1 star reviews: 3
79%would recommend this product
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62 reviews
  • D
    DianeK
    I do not recommend this product
    Rated 2 out of 5 stars
    1 month ago
    Disappointed

    Not thrilled. Have replaced the filter many times in the past 1 1/2 years (as evidenced by my orders) and have extra pre filters that i wash regularly. My bedroom walls, drapes, picture above unit and the unit's cord itself require constant cleaning. I was going to buy a larger model for this SMALL room but quite frankly I'm afraid I'll be as dissatisfied with it as I am the 511.

    BlueEU Staging
    1 month ago

    We appreciate you taking the time to share your experience with your Blue Pure 511. It sounds like you’ve been diligent in maintaining your purifier. Dust buildup on nearby surfaces can sometimes occur because the purifier draws airborne particles toward itself, which may make settled dust more noticeable in the surrounding area. We’ve reached out directly to learn more and review your unit’s performance.,Blueair,Blueair Team,clientresponse

  • JH
    Jenn H.
    I do not recommend this product
    Rated 2 out of 5 stars
    11 months ago
    Swing and a miss!

    I was disappointed that it started statically charging dust which stuck to the unit, walls, and furniture nearby. After digging into why, I was surprised to find out the machine has a form of ionizer (which can create small amounts of ozone). I didn’t feel it was safe enough for my home and I don’t think it did as good a job as a unit with a true HEPA filter.

  • D
    Drina
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    I’ve underestimated this QUALITY AIR FILTER🥰

    Wonderful filter!! but you need at least 2 of the smaller units. My 2 sons who stink up the place when coming in from sports& Cooking aromas NOW NOTHING!! My prayers have finally been answered

  • K
    KLM13
    I do not recommend this product
    Rated 1 out of 5 stars
    1 year ago
    Great at first and then stopped working.

    I bought this 1 year ago. 6 months in the fan stopped working. When I tried to get it fixed and look into it, I get the run around. I cleaned the sensor and replaced the filter every 3 months. The light is blue but the fan no longer runs. I spent good money on this and am rather disappointed. Troubleshooting with the company or a replacement would help but no luck getting any help,

    BlueEU Staging
    1 year ago

    Thank you for leaving a review. I’m so sorry to hear about your experience regarding your Blue Pure 511. Quality is important to us, and we’d love to make this right. Our team will email you directly to resolve this issue.,Blueair Team,,clientresponse

  • T
    TBos805
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Perfect

    Perfect for my needs. Currently in my guest bedroom and guest will be purchasing one when she gets home!