Blueair Air Purifiers: models 203, 403, 450E, 503, 603 and 650E  

Features and Benefits:

Extremely Quiet Operation: Air passes easily through the Blueair filter media, therefore fan doesn't have to work as hard and therefor is much quieter. The Blueair housing is designed to work quietly, replacing sound transmitting plastic with noise-muffling steel.

Award-Winning Design: The sleek, modern styling has earned Blueair a prestigious design award in Scandinavia, the Excellent Swedish Design Award.

Durable Steel Housing: The Blueair system housing is made of rust-proof powder-coated steel, rather than fragile plastic.

Zero Ozone Emission: Their system significantly reduces ozone production. Testing has shown that the ozone concentration in the Blueair system's output air is actually lower than that of the incoming air.

Low Energy Usage: Blueair was among the first manufacturers to earn the Energy Star designation for air purifiers, a program sponsored by the U.S. Environmental Protection Agency (EPA) and the Department of Energy.  All Blueair Purifiers exceed Energy Star's energy efficiency guidelines.

Easy to Maintain: Turn it on and select the fan speed setting. Blueair works so quietly, at first you may wonder if it's turned on. Blueair Hepa-Silent filters require no weekly maintenance and durable powder-coated steel exterior is easy to wipe clean.

Industry High CADR: Clean Air Delivery Rate (CADR) was developed by the Association of Home Appliance Manufacturers (AHAM) in the United States. The number, to help consumers determine how well an air purifier reduces airborne pollutants such as tobacco smoke, dust and pollen by measuring  the volume of filtered air delivered. The higher the CADR, the quicker the unit delivers filtered air.

CADR Measures: Clean Air Delivery Rate (CADR) was developed by the Association of Home Appliance Manufacturers (AHAM) in the United States. The number is meant to demonstrate how effective an air purifier reduces pollutants such as cigarette smoke, pollen, and dust. The higher the number faster the purifier delivers filtered air. CADR looks at the size of the particles removed, the percentage removed and the volume of air that moves through the purifier filters. CADR is one way to determine which purifier you’re looking at is the more efficient. When tested by an independent laboratory, results are recognized by the Environmental Protection Agency as an accurate measurement.

Blueair filters trap six times more dirt than filters in other typical air purifiers. The reason is the filter's progressive structure. Many filters from other manufacturers are thinner and usually consist of the same size filter fibers throughout. Blueair filters have millions of ultra thin fibers in three different sizes and are progressive in their filtering action. The first layer captures larger particles like pollen & dust. The second and third capture smaller particles like bacteria and micron sized particles.