Meet the Blue Pure 511 Air Purifier, our most compact air purifier with HEPASilent™ technology that seamlessly fits into your home. Quickly purifies a 16 m2 room in about 12.5 minutes or up to a 38 m2 space in 30 minutes. Ideal for bedrooms, nurseries or home offices with a compact footprint and low noise level; as quiet as a whisper at 24 dB on low. Blueair air purifiers are whisper-quiet and use less energy than a light bulb; without taking up too much space. Enjoy fresh air in a matter of minutes with the touch of a button. Blue Pure 511 stylishly fits into your home with Scandinavian inspired machine-washable pre-filter cover; you can personalise your air purifier to match your interior, Arctic Trail grey pre-filter included. Perfect for use in your bedroom for a good night sleep More clean air, faster: Only Blueair air purifiers use HEPASilent™ dual filtration technology.