FEATURES : DIGITAL VACUUM MONITOR is used to show the suction power, so users can easily read it. The suction tube directly connects to the suction bottle, so users can easily wash it. Its sanitary and safe. The handle attached to the suction bottle makes users easily lift and wash it. The foot switch adopts air pressure type, so it is anti-moisture, insulating and safe. 360 individual caster with locking brakes features easy movement and high safety. The fastening rack installed at the side makes the suction tube be easily put.