The Blueair Blue Pure 411 is a compact air purifier measuring 42.5x20x20cm. Its compact size doesn't make it any less powerful. The 360-degree air input ensures that all the dirty air in a space of up to 20m2 is sucked into the machine. With no more than 46dB, the noise produced by the purifier is like a whispering sound. The controls of this air purifier couldn't be easier. The purifier features only 1 physical button to control it with. The carbon, odor, pre, and HEPA filter filters bacteria, bad odors, and viruses from the air. On top of that, there's a pollen program and ionization function for optimum results. Its low energy consumption makes this appliance attractive for your wallet too.