🌬️ Breathe Fresh, Live Fresh! Compatible with multiple Blueair classic models. Eliminate pollen, dust, and pet dander effortlessly. Designed to save energy while purifying air. Made from 100% recyclable materials. Recommended filter change every 6 months. Low-density design 100% Recyclable Change every 6 months The BLUEAIR Classic 500/600 Genuine Particle Replacement Filter is designed to fit a variety of Blueair classic air purifiers, ensuring optimal performance by effectively reducing allergens like pollen, dust, and pet dander. Made from 100% recyclable materials, this filter not only promotes a healthier environment but also saves energy with its low-density design. Recommended to be replaced every six months, it guarantees long-lasting air purification for your home.