The versions of FlexiBowl for cleanroom use incorporate a series of modifications that make it suitable for use in cleanroom environments classified ISO 5 and higher. In detail: Back-lighted glass plate Pneumatic components specific for cleanroom use Perforated top screen to favor laminar flow The characteristics of the materials used in the cleanroom-certified versions of Flexibowl – stainless  steel, glass, and natural polycarbonate – are appropriate for use in controlled atmospheres even if subject to friction and abrasion.