To extract even more power from the new Rapido rechargeable, we have completely re-designed the fan unit. First, we have boosted vacuum by optimizing air flow with the help of advanced gas-turbine technology. Then, to reduce losses, we have encapsulated the fan. And finally, we have tweaked the shape and angle of the fan blades. The result is an intelligent piece of engineering that generates higher airflow and suction than ever before .