Default air delivery (incl. filter), 3 fan speeds 1: 8　2: 15　3: 30  m3/h Weight (system incl. filter) (approx.) (with stand incl. power supply) 2.8 kg (w/o attachments) 2.0 kg Power requirements 110-240 V / 50-60 Hz Energy consumption, 3 fan speeds <1.5, 1.9, 3.4 W Dimensions (H x W x D) (with stand) 31.6 x 14 x 31.6 cm Fan motor multiphase DC fan motor Colour of main housing / stand white or black with grey trim Housing material PC-ABS & PC plastics 1. High-efficiency personal air purifier with HyperHEPA-grade air filtration down to 0.003 microns, made in Germany by Swiss IQAir 2. Sleek, compact and portable design, easy to use at home, office, hotel room, school, etc. 3. Clean air much quicker than a room air purifier by creating a clean-air bubble directly to your personal breathing zone 4. Smart features and settings available with the free IQAir Atem app (compatible with Apple and Android smartphones), e.g. proximity on/off sensor to save energy, customizable fan speed settings, filter-life notifications, etc.