BISSELL air400 air purifier provides Simply Clean Air™ from a trusted brand in homecare. We know life happens - between the kids and pets, there are odors, allergens, dust, and other irritants we can’t always see in our air that need to be cleaned. That’s why air400 air purifier is designed to perform from the inside, out. It captures airborne particles and odors with three stages of filtration, including a medical-grade HEPA filter that captures 99.97% of particles 0.3 microns and smaller when on lowest fan speed, helping to remove airborne irritants like dust, pet dander, pollen, and smoke like that from wildfires, cooking and smoking. It also has an automated CirQulate® System that auto adjusts fan speed as indoor air quality changes. The CirQulate System also uses particle sensor technology to monitor indoor air and communicate your home’s real-time air quality through three distinct colors and a numerical reading. With an industrial grade fan and a digital, 20,000-hour digital motor, air400 air purifier can filter the air in a 432 sq. ft. room, making it great for bedrooms, living areas, and basements. And when you purchase this air purifier, you help save pets! BISSELL proudly supports BISSELL Pet Foundation® and its mission to help save homeless pets. When you buy a BISSELL product, you help save pets, too. We’re proud to design products that help make pet messes, odors and pet homelessness disappear.