... , but also it can stand on the floor or be mounted to the wallDo you want to improve ... fresher longer, but does NOT affect food taste, vitamins or nutrition6. Removes bad smells and odours quickly7. Kills ... 5.5 VDC5.5 VDC with USB connector , or,120-220 VAC 50/60 Hz with adaptorOperating temperature ... working space Small printing rooms USB adaptor or 3xAA battery portable MINI household Air Purifier