Ventilation function supply environmentfresh air eliminate polluted air.Absorb the odor and removethe odor from the bathroom.Dust removal function removes floating dust in workplace and home environment.Moisture removal function exclude humid environment air such as bathroom and kitchen.Take away hor gas and eiminate hotgas in high，temperature environment.Installation size: 281*28 1 mmSize: 160mmCase size: 32.3X16.9X32(cm)Rated voltage (Voltage): 220V~Rated frequency (Frequency): 50HzPower (Power): 40WGross Weight: 2.6kgPackage Included:1ventilator1.After receiving the packaging, please check the packaging and the product carefully. If the received item is defective or has any questions, please contact us via email to resolve the problem. We will reply as soon as possible .2.Only the main products are sold, and the rest are decorations rather than sales.3.Please allow 1-3mm error due to manual measurement.4.Actual color will be slight difference between the picture because of the brightness.