Blueair Classic 400 Series Dual Protection Filter

Carbon + Particle filter. Activated coconut shell carbon. Non-woven gradient Polypropelyne fibers. Free of chemicals and binders. Fiber shedding resistance

Pure, high-porosity coconut carbon efficiently removes gaseous pollutants from your home 4x faster than other Blueair filters, including household chemicals and cleaners, volatile organic compounds (VOC) and odors from pets, cooking, and smoking.

When it’s time to replace your filter (about every six months), start by unplugging your air purifier. Open the back door to remove the old filter and vacuum away any dust on the inside. Insert the replacement filter, close the back door, and plug back in. Easy.