Flagship Performance and Furniture-Inspired Design for Extra-Large Spaces.

The Blueair Blue 4.0 Signature is the pinnacle of the Blueair range, merging elite Swedish air purification with the functionality of a premium side table. Designed to be "hidden in plain sight," this unit delivers massive cleaning power in a compact, aesthetic form. Featuring the debut of OdorFence™ technology, it doesn't just filter the air; it transforms the atmosphere of your most lived-in spaces by neutralising the toughest household smells at a molecular level—proven to be up to 10x more effective¹ than traditional carbon filters.

Deep, Effortless Purity with 360° Surround Boost

• Advanced 7-Stage Filtration: A sophisticated multi-step process that combines mechanical and electrostatic filtration with OdorFence™ technology to ensure no pollutant escapes.

• Breakthrough OdorFence™ Technology: Specifically designed to neutralise gas-based pollutants, cooking smells, and pet "funk" rather than just trapping them, offering 10x better odour removal¹ performance.

• HEPASilent™ Performance: Removes 99.97%² of airborne particles down to 0.1 microns, including viruses, bacteria, and allergens³.

• Functional Table-Top Design: Crafted from premium materials, the unit doubles as a side table (supporting up to 5kg), blending seamlessly into your décor.

• 360° Surround Boost Airflow: Aero-optimized engineering ensures fast, even air distribution throughout the entire room, cleaning up to 314m² in just one hour.

• Motion-Activated Dynamic Display: An intuitive interface that "wakes up" as you approach, providing real-time data on PM1, PM2.5, and PM10 levels.

• RealTrack™ & Smart App Control: Accurately tracks filter life based on actual pollution levels and allows for full remote control and scheduling via the Blueair App.

Who is this for?

The Blue 4.0 Signature is for the homeowner who demands the absolute best in air quality but refuses to clutter their space with industrial-looking appliances. It is the ultimate choice for large open-plan living areas, kitchens, or high-traffic family rooms where cooking odours and pet dander are constant challenges. If you value Scandinavian design and want a "set and forget" solution that enhances your home’s wellness and aesthetic simultaneously, the Signature is for you.

¹ Odour Removal: Tested vs. leading competitors' standard carbon filters on common household gases.
² 99.97% Filtration: Tested on PM 2.5 up to 90 minutes.
³ Virus & Bacteria: Tested on bacteria (S. aureus, K. pneumoniae, P. aeruginosa) and virus (MS2) with a minimum reduction rate of 99.8%. Blueair does not claim to prevent transmission of airborne illnesses.