Multi-stage malodorous or noxious gas purification system

摘要

A multi-stage malodorous or noxious gas purification system comprises: purifiers for extracting unnecessary ingredients from gas including such unnecessary ingredients; a plurality of unitary purification tanks each having a filling space for filling the purifiers therein and an inlet opening and an exit opening for the gas to pass through the filling space; and at least one connecting member being gas-permeable and installed at the inlet opening or the exit opening of each unitary purification tank, for isolatedly connecting the plurality of unitary purification tanks, wherein two or more different kinds of the purifiers are used.