The State of the Art Softwall Component System. The design of the VFCS (Vertical Flow Component System) - which includes frame, MAX 8000 Series, lights and vinyl curtain sets up fast on your site without the need for special tools. The curtain which is 20 mil. vinyl extends downward to within 12" of the floor. This curtain acts as an air containment device to assure Class 100 (ISO 5) air flowing down and over the critical work area. Lighting will supply 100-125 FTC over the work surface at a height of 30' from the floor.