Tank VentilationThe requirement for confined space ventilation comes form the risk of oxygen depletion within the space due to the materials normally stored in the area or as a by-product of the work being carried out e.g. hot work (buring, cutting or welding) or the use of chemicals and solvents.As the Kingspan Rhino tanks are completely prefabricated and fitted with liners the use of oxygen depleting chemicals or any hot work is not required. Only lifting equipment, ladders, scaffolding and a selection of small hand tools are.