





A durable replacement filter designed exclusively for the Blue 511i Max Air Purifier to maintain optimal clean air performance.
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders.
Key Benefits
Compatible with Blue 511i Max only.
Captures dust, pollen, and pet dander.
Supports consistent air purification.
Designed for quick, easy replacement.
Built for long-lasting durability.
The Blue 511i Max Replacement Filter is engineered specifically for the Blue 511i Max Air Purifier to help maintain its air cleaning performance. Designed for simple, tool-free replacement, it allows for hassle-free maintenance and uninterrupted purification.
Constructed from durable materials, the filter effectively captures common airborne particles such as dust, pollen, and pet dander. Regular replacement ensures your Blue 511i Max continues delivering clean, refreshed indoor air with consistent efficiency.
Blueair uses a four-layer filtration system with HEPASilent™ technology that combines electrostatic and mechanical filtration to remove 99.97 per cent of airborne pollutants such as pollen, dust, and smoke. This approach captures tiny particles faster and more quietly than traditional HEPA systems, and it builds on technology first developed by the brand’s founder and now trusted in over 60 countries. All Blueair air purifiers meet CARB standards and operate within strict ozone limits, with independent testing at Intertek confirming emissions far below required thresholds. Several models also hold Zero Ozone Verification, which confirms ozone levels of 5 parts per billion or less. This proven, carefully tested system helps you breathe cleaner air with confidence every day.
Blueair was founded in 1996 in Stockholm by Bengt Rittri, driven by a simple goal: to ensure his children could breathe the same clean air indoors as they did in the Swedish archipelago. With a deep commitment to environmental responsibility, Rittri built Blueair into a global brand focused on healthier indoor living. The brand develops high-performance air purifiers using precision-engineered filtration technologies designed to capture airborne particles, allergens, and pollutants efficiently and reliably. Each system reflects a science-led approach, combining smart design with carefully tested components to deliver consistent air quality. Through this commitment to clean, effective solutions, Blueair helps create healthier homes so you can breathe easier every day.
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Replace the filter approximately every 9 months, depending on usage. Monitor the filter indicator light or check the Blueair app (for compatible models) to know when a replacement is needed.
After installing a new filter, reset the filter indicator by pressing and holding the fan speed button for around 15 seconds until all interface LEDs light up. Release the button once the filter light turns off.
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Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.





