Almost all the hospitals now days have a centralized medical vacuum system. The medical vacuum packaged duplex shall be assembled integrated package unit, consisting of two oil-rotary vacuum pumps, vacuum reservoir, vacuum line filter and control cabinet, which may not require individual installation. Up to the motor size 0.75 kw, 1.5 kw, 2.2 kw, 3.1 kw and 5.5 kw, there are packaged stations available, depending on the vacuum capacity.