Number of filters: 3, housed in the corresponding blower/filter module (order HEPA or ULPA filters separately)
Includes three 1200 CFM (2038.8 m^3/hr) impeller blowers (rated at 0" static pressure)
This negative-pressure system draws exhaust fumes upwards from the work area through an exhaust purification filter to allow safe indoor release
Power Integration Module (included) features switching and breaker protection for all electrical components, along with Operation Status Indicator that flashes if fan is not operational