With two fans in series, the new Turbo Smart 2V suction unit reaches a vacuum level of 280 mbar, which can be changed at any time by the clinician. 
The higher vacuum level can be useful with suction lines of too small a diameter, or with traps where liquids stagnate and, at normal vacuum levels, reduce suction flow. For technical reasons, Turbo Smart 2V is produced in version B only.