Bien-Air Black Pearl Triple port spray provides more than adequate cooling, while the ceramic bearing turbine in the Black Pearl provides improved longevity with less maintenance.
	Bien-Air Bora Ceramic ball bearing lubrication free turbine allows for smooth, quiet operation at maximum speeds with fewer trips to the service technician.
	Bien-Air Optima Brushless electric motors have constant torque characteristics which provide optimum cutting at all speeds, not losing as much power as air driven handpieces when pressure is applied.