The Alen BreatheSmart FLEX is ideal for medium, large, and extra large-sized living spaces including living rooms, bedrooms, nurseries, laundry rooms, guest rooms, bathrooms, offices, kitchens, basements and more! Developed by NASA airflow engineers, the BreatheSmart FLEX cleans 700 SqFt every 30 minutes. Alen’s New True HEPA filter is best for removing heavy smoke from cooking, cigarette smoke, wildfire, woodburning fireplaces, PLUS airborne allergens, dust, orders, pet smells, fur household odors while eliminating bacteria and mold spores. The filter has a compound that helps kill airborne bacteria, germs, fungi, and viruses including the flu. It comes with a high capacity True HEPA layer to capture 99. 97% of airborne particles down to 0. 3 microns. Built with your comfort in mind, the BreatheSmart Flex air cleaner has WhisperMax Technology so you can rest peacefully. It has four fan speed options; the lowest produces such a small frequency, like a whisper. On the turbo fan setting the BreatheSmart Flex emits a frequency called pink noise which is a lower tone then the white noise and sounds like a gentle rainfall. The CFM (airflow in Cubic Feet per Minute) includes 4 speeds and noise levels: Speed 1: 53 CFM; Speed 2: 135 CFM; Speed 3: 147 CFM; Turbo: 187 CFM; Noise levels Speed 1: 39 dB (whisper); Speed 2: 42 dB (light rainfall); Speed 3: 49 dB (heavy rainfall); Turbo: 55 dB (medium box fan). Mix and match the colors in your house, or use the BreatheSmart Flex to add that pop of color to accentuate your personal style. It is a sleek air purifier with a modern and stylish design to fit into any decor! The BreatheSmart Flex is the only one in it's class that gives you look and feel of the signature BreatheSmart collection. It can be used in any flex space up to 700 Square Feet. Includes: 1 BreatheSmart FLEX Air Purifier, 1 B4-Fresh Filter, 1 Panel