In many buildings smoke containment systems such as Smokemaster are used to prevent the movement of smoke and heat from one area to another. Smokemaster is rated to contain smoke at a temperature of up to 600 C for 30, 60, 90 or 120 minutes, depending on which version is selected.SMOKEMASTER IS AVAILABLE IN THREE VERSIONS: Single units (type SI).Double vertical (type DV) units, where continuous runs with overlapped fabric to form a continuous barrier are required.Double horizontal (type DH) units, where there is a premium on space under the ceiling.