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Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
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Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
Blue Signature™ Large Replacement Filter
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Blue Signature™ Large Replacement Filter

Compatible with Blue Signature™ Large Air Purifier

4.3
Rated 4.3 out of 5 stars
22 Reviews
Use code FILTER15 for 15% off
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This filter is only compatible with the Blue Signature™

  • Designed for easy replacements, ensuring hassle-free maintenance for continuous clean air
  • Crafted with durable materials for a long-lasting filter
  • Effectively captures allergens like dust, pollen, and pet dander

  • Alerts when you need a new filter
  • RealTrack Technology® filter monitoring
  • Double* the
filter lifetime

Smart filtration, you can trust

7 stages of filtration,
Advanced odour removal


HEPASilent filtration technology captures at least 99.97%² of tiny airborne pollutants down to 0.1 microns while OdourFence Technology captures common odour gases and breaks them down. It’s deep, effortless clean air you can feel, and smell, every day.

  • Ship free next day

  • 30 day home trial

  • Authenticity guaranteed

4.3
Rated 4.3 out of 5 stars
Based on 22 reviews
Total 5 star reviews: 16 Total 4 star reviews: 0 Total 3 star reviews: 4 Total 2 star reviews: 0 Total 1 star reviews: 2
73%would recommend this product
22 reviews
  • GG
    Gary G.
    Verified Buyer
    3 minutes ago
    Rated 5 out of 5 stars
    Elegant Air Cleaning

    The Blue Signature offers quiet and efficient air cleaning in a stylish format. Its simple controls and easy operation are ideal for maintaining high air quality in the home environment.

  • DC
    Duncan C.
    Verified Buyer
    10 hours ago
    Rated 5 out of 5 stars
    First impression

    Everything appears to be working. It looks nice and you can't hear it on the lowest fan position. The red light shows it does pick up when something is cooking in the kitchen. We think it's helpful for breathing cleaner air.

  • MS
    Mark S.
    Verified Buyer
    2 days ago
    Rated 5 out of 5 stars
    Filter

    Great product

  • KB
    Kathleen B.
    Verified Buyer
    1 month ago
    Rated 5 out of 5 stars
    Love Blue Signature

    Easy to set up and use. After a week truly feel the difference in our home. Bonus, it’s beautifully designed serving as an end table in the living room.

  • RA
    Ralph A.
    Verified Buyer
    1 month ago
    Rated 1 out of 5 stars
    I’m having a lot of trouble with my purifier

    First, it will not let me connect to Wi-Fi. I moved homes and in my new house I just cannot connect. I’m doing everything the instructions say. Can you give me a number? I can call so I can speak to someone

    BU Profile picture for Blueair UK
    Blueair UK
    1 month ago

    Thank you for sharing your experience. We’re sorry to hear you’re having trouble connecting to Wi‑Fi after moving. The unit is designed for simple, consistent setup and should not cause any hassle. Our support team will be happy to assist you and work with you to resolve the issue.

² Tested on PM2.5 up to 90 minutes.