This is a dry vacuum cleaner; ideal daytime cleaning in nursing homes, offices and education facilities where power is not easily accessible or the use of corded machines poses a risk. The quick change battery Lithium ion system provides 50 minutes of runtime so you experience maximum productivity - simply push the lever up to release and replace the battery plus a battery level indicator lets you know when the battery needs recharging. It only weighs 5kg and includes a convenient carry handle for easy transportation. A self-adjusting nozzle allows the vacuum to float evenly over all flooring surfaces, no manual adjustments are required and it lays flat on the floor for effective cleaning under beds and tables and the edge cleaning feature provides improved cleaning near walls and stationary furniture. A HEPA bag is included.