Blueair 400 Series DualProtection Filter


Experience uncompromised and rapid air purification with the Blueair 400 Series DualProtection Filter. Designed for ultimate particle, gas, and odor removal, it uses HEPASilent technology and activated coconut carbon to efficiently remove pollutants up to four times faster than other carbon filters. Breathe in clean, fresh air without any reduction in Clean Air Delivery Rate.

Compatible with Classic 403 • 405 • 450E • 402 • 410 • 455EB • 480i

• Optimized for HEPASilentTM technology 
• Uncompromised particle filtration 
• Pleated for maximized filter area 
• Pure, high quality activated coconut carbon 
• No chemical additives • 99.97% removal of particles down to 0.1 micron such as pollen, dust, pet dander, mold spores, viruses, bacteria and micro plastics
• Eliminate odors that cause allergic reactions within 30 minutes
• Performs 4x Faster than SmokeStop Filters