Material Plastic, Metal Product Attributes Battery Contains Package Size 135*61*71(1mm); 100*80*50(1mm) Overview: Powerful air filter, cleans your personal air, away from 99.98% dust, pollen, pet dander, smoke and odor, help to alleviate allergies, and is the ideal choice for any desktop, table, car, product purification effect up to 200m ³/ H particulate matter Cadr. The product is designed with double air inlets to improve air purification efficiency. The purification area is 15-25 square meters, suitable for large, medium and small houses. The operation of the product is very simple, the button control, and the noise is very small, so don't worry about it when you sleep, it won't disturb you, you can set the one button sleep mode, the noise is even less than the breathing sound. Product information: Material: ABS Power: 3.9 (W) Power Supply: 5 (V) Negative ion concentration: 500W Appearance size: 60*60*130mm Weight: 0.2 (kg) Color: Elegant black, ivory white Features: Clean air and remove odors