Blueair Blue Signature SP3i Replacement Filter

Blueair Blue Signature SP3i Replacement Filter

The Blueair Blue Signature SP3i Replacement Filter is the genuine filter for the medium-sized Blue Signature SP3i air purifier, engineered to restore your unit to full performance the moment it's fitted.

A fresh filter keeps the air in your home clean, odour-free and well circulated. Thanks to Blueair's patent-pending design and RealTrack monitoring, this filter can run for up to 12 months before it needs changing, depending on how heavily the purifier is used.

• PERFECT FIT: Patent-pending filter designed and tested exclusively for the Blueair Blue Signature SP3i, so it seats correctly every time and your purifier keeps performing as intended.
• QUALITY FILTRATION: Traps 99.97% of airborne particles down to 0.1 microns — pollen, dust, pet dander and smoke included — for noticeably cleaner air.
• IDEAL PERFORMANCE: HEPASilent dual filtration cleans the air faster, more quietly and with less energy than conventional HEPA filters alone.
• ODOURS BLOCKED: OdorFence Technology combines bio-based enzymes and minerals to break down odour and gas molecules, removing up to 10x more odour.
• REAL-TIME FILTER TRACKING: Blueair's RealTrack algorithm measures actual fan speed, run time and pollution levels, then tells you exactly when a change is due — with up to 12 months of life per filter.
• EASY MAINTENANCE: A quick-swap design means changing the filter takes seconds. No tools, no dismantling, no mess.

Model Compatibility: This filter is only compatible with the Blueair Blue Signature SP3i (medium) air purifier. Check the label inside your device to confirm your model before ordering.

Seven stages of filtration, 10x more odour removal

HEPASilent dual filtration pairs mechanical and electrostatic filtration, so the SP3i captures at least 99.97%* of airborne pollutants down to 0.1 microns — fine particles, dust mite allergen, pollen, bacteria and mould allergen — while running quietly and drawing less power than a conventional HEPA-only purifier.

OdorFence Technology handles what particle filtration can't. Bio-based enzymes and minerals capture common odour gases and break them down rather than simply masking them, which is what allows the SP3i to remove up to 10x more odour***. Cooking smells, pets and everyday household odours are dealt with at the source.

When to replace: your SP3i will tell you. The filter replacement indicator on the control panel turns red when a change is due, and the Blueair app sends the same alert. After fitting the new filter, reset the indicator by pressing and holding the fan speed button for 15 seconds, or reset it from the device page in the app.

Specifications

Blueair was founded on the firm belief that freedom to breathe is a basic right. Over two decades ago, Blueair's Swedish founder set out to make the world's best air purifier. By bringing together a team of talented designers and filtration experts who shared his passion for sustainability, quality and design, the Blueair air purifier was born.

Today, Blueair's award-winning air purifiers which combine superior performance and low noise with timeless Scandinavian design, improve the health and well-being of people in over 60 countries around the world. Since 2016, Blueair is a proud member of the Unilever family of brands.