Simplex Softwall Curtains offer versatility and reliability that cannot be found with any other product. Curtains can be used with framing to CREATE A CLEAN ROOM, or used independently within warehouses and storage areas. Softwalls are constructed from 4 foot wide sheets of vinyl in thicknesses from 40 to 80 mil. These sheets are RF welded to form either solid walls or movable curtains. Simplex products are especially suitable for enclosing PORTABLE FRAME SYSTEMS OR IMPROVING LAMINAR FLOW AREAS above work spaces. Softwalls are also used to further divide existing clean rooms, effectively creating cleaner inner zones.