Pharma Egypt Fan Filter Units (FFU) are ceiling module consisting of HEPA-filter, fan and control system. The module is designed to provide unidirectional vertical airflow of filtered, clean air over a cleanroom space by removing harmful airborne particles from recirculating air. FFU creates a positive room pressure that reduces the contamination risk from potential ceiling bypasses. They are commonly used in cleanroom for applications such as Semiconductor, electronics, flat-panel displays, disc-drive, manufacturers and optics, bio-engineering, clean lines, Nano technology ,etc.