Biobased means the materials come from natural, renewable, above-ground sources — like wool and plants— rather than fossil-derived materials like conventional plastics. The EcoLast™ filter media is certified 100%biobased by the USDA.

The EcoLast™ is made from wool that is USDA Certified as 100% biobased and PLA (a plant-derived plastic). The carbon layer uses a paper-based carrier with biobased, biodegradable glue. The packaging is also designed to be sustainable and biodegradable. Unlike traditional synthetic filters, it does not shed microplastics.

When you replace your 211i Max filter with an EcoLast™ Wool Filter you will need to scan the QR code on the packaging, which lets the App know a longer lifetime filter has been installed and extends the filter life timer accordingly. When it's time to replace, you'll receive a notification through the Blueair app. 

The EcoLast™ Wool Filter lasts up to 50% longer than our standard replacement filters.

The EcoLast™ uses Lanaco's patented EcoStatic® technology. During manufacturing, wool fibers are given positive and negative surface charges through a mechanical process — no chemicals or heat involved. These opposing charges attract and capture air borne particulate matter, similar to how static electricity works. The filter's porous, non-woven structure also allows air to flow through freely, resulting in ultra-low air resistance and a low pressure drop.

The EcoLast™ Wool Filter delivers equivalent filtration performance to our regular filters — with the added benefit of lasting up to 50% longer. It achieves a high Clean Air Delivery Rate (CADR) for particles and also provides measurable reduction of chemical gases just like our standard filters.

The EcoLast™ Wool Filter is currently available exclusively as a replacement filter for the Blueair 211i Max. It is not compatible with other Blueair models at this time.

The EcoLast™ Wool Filter is the world's first biobased electrostatic wool filter for air purifiers. It's sold as a replacement filter for the Blueair 211i Max, made from wool certified by the USDA as 100% biobased. It delivers similar high performance to our regular filters while being a more sustainable choice for the planet.