Brushless motor controller and a motor controller what are the difference between the two?

Scope:
brushless motor controller of the device can be used in: the dairy industry, brewing industry, soy products, meat products processing industry and processing industry, beverage processing industry, pastry processing industry, pharmaceutical industry, electronic precision factory, some higher requirements of dust-free workshop and so on have a brush motor controller: can only be applicable to all kinds of bathroom area of not too high requirements, such as, like dust-free workshop and explosion-proof workshop will not be able to use. Service life: brushless motor controller: can work continuously for 20000 hours or so, the service life of conventional 7 - For 10 years. A brush motor controller: can work continuously for 5000 hours or so, the service life of the conventional 2 - For three years. Use effect: brushless motor controller: in a 90 - 95 m/s high speed operation, actual effect can reach 5 - 7 s time for drying hands. Carbon brush motor controller, speed and time to dry hands is far lower than the brushless motor controller. Energy-saving aspects: relatively, brushless motor controller of the power consumption is only 1/3 of the carbon brush.