Blue Signature Large

Full review

The Blueair Blue Signature Large is a premium air purifier built for extra-large rooms. It combines strong airflow with HEPASilent filtration, smart app controls, and a design that looks more like furniture than a typical air purifier. Blueair rates it for rooms up to 705 sq. ft. at 4.8 air changes per hour, making it an interesting option for large bedrooms, living rooms, and open spaces. In this review, we look at its real performance, noise, filtration, features, running costs, and overall value.