Pharmaceutical grade filtered air circulation system by skan ag, serial # 6009. Features all stainless steel construction with polished pharmceutical grade finish, designed to provide flow of hepa filtered air via camfil farr filter @ 0. 3 micron/99. 9% efficiency, up to 430 cfm at max w. G. 1. 35, twin cabinet mounted 2 horsepower american fan blowers provide air flow through filter system to desired site and discharges at floor, factory controls operating on 208/3 phase voltage, 3" positive air connection and 2" negitive air connection, mounted on portable cart formerly used in medical clean room packaging.