Blue Signature™ Small Knicks Limited Edition

Blue Signature™ Small Knicks Limited Edition

Air Purifier, Small Rooms

$40.00 USD$99.99 USD
Engineered to perform. Designed to impress.
  • Rapidly cleans 248 ft² in 12.5 minutes & up to 1,200 ft² in 1 hour
  • Smart VOC sensor detects what you can’t see, so you can breathe better
  • 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
  • Double⁶ the filter lifetime thanks to our patent-pending filter design
  • Smart features in the highly rated, newly improved Blueair app
  • Customize with exclusive accessories
  • Motion activated touchscreen display
  • Double* the
filter lifetime
Additional Features
  • Wi-Fi connectivity for remote control Yes
  • On/ off timer Yes,
  • Speed control options 1 - 2 - 3 - 4 - Auto - Night - Eco
  • Integrated air sensors Yes
Shipping & Warranty
  • Free & fast shipping
  • 30 day home trial
  • Free extended warranty
7 stages of superior filtration and smart VOC sensing for 10x³ more odor removal

Smart VOC sensing continuously detects airborne gases and chemical pollutants in real time. HEPASilent filtration technology captures at least 99.97%² of tiny airborne pollutants down to 0.1 microns, such as fine particles, dust mite allergen, pollen, bacteria, virus and mold allergen⁴ OdorFence captures common odor gases and breaks them down. It’s deep, effortless clean air you can feel, and smell, every day.

“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.”

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.

Blue Signature™ Small Knicks Limited Edition

Technical Specifications

  • Dimensions(HxWxD)

    13.7” x 9.4” x 9.4”

  • Product Weight

    5.64 lbs

  • Energy Consumption

    20 W Max

  • Sound level

    Low: 19 dB High: 50 dB

  • Air outlet

    Top

  • Recommended room size

    248 ft²

  • Air changes per hour (ACH)

    4.8

  • Clean air delivery rate (CADR)

    Pollen 179 cfm
    Dust 167 cfm
    Smoke 160 cfm

  • Number of filters

    1

  • Speed control options

    1 - 2 - 3 - 4 - Auto - Night - Eco

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?

Your 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™ Small operates quieter than a whisper on low at 19 db and is no louder than 50 dB on high fan speed.

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¹Based on high-speed CADR by volume vs. similar competitive models

²Tested on PM2.5 up to 90 minutes.

³Tested on Acetaldehyde gas vs. similar leading competitor filter

⁵Based on consumer testing of 38 users over the course of 4 weeks

⁶Compared to Blue Pure 211+