The JDS 750-ER is a 200 CFM to 750 CFM Variable Speed Air Filtration System with Remote and Electrostatic Pre-Filter. The JDS Air-Tech 750-ER high efficiency air cleaner is equipped with a convenient LCD remote control with speed and timer functions. The heavy-duty 1/4 HP motor produces a class-leading, 1050 CFM unrestricted airflow and provides 350 CFM, 550 CFM, 750 CFM of filtered air. This will clean the air in a 30’ x 30’ x 8’ shop once every 10 minutes. The filtration system will remove 99% of dust particles as small as five microns and 91% of particles as small as one micron in size.