Honeywell true HEPA air purifier; #1 in the USA; #1 Allergist recommended brand in the US. Capturing 99.97% of the microscopic particles (0.3 micron and larger) that pass through their filters. Efficient at capturing odours, airborne particles and certain germs. The true HEPA filter technology is the golden standard in air purification. A filter check indicator shows you when it is time to replace the filters. The pre-filter requires to be changed every 3 months and the true hepa filter once a year. Suitable for room size up to 15m2m. Quiet operation. 4 speed settings. HEPA filter. 99.97% filtration rate. Filter included. CADR rating smoke 170. CADR rating pollen 170. CADR rating dust 180. Night light. Size H39.4, W26.4, D38.8cm. Manufacturers 3 year guarantee.