This replacement filter is designed to work with the Blueair Blue Pure 211+ air purifier. It features activated carbon and HyperHEPA filtration technology, capable of capturing allergens, dust, odors, dust mites, bacteria, VOCs, pollen, debris, chemicals, and mold. The filter has a lifespan of 6 months and can be easily installed on the floor-mounted air purifier. The Genuine Blueair Blue Pure 211+ Particle + Carbon Replacement Filter 211 SEALED is made of plastic and has a white color. . This air purifier filter is perfect for any room and weighs 2.2 lbs with dimensions of 13 inches in depth, 12 inches in height, and 13 inches in width.