A quick-change filter system provided with at least one base and at least one
quick-change
filter, which base is provided with a filter coupling provided with a gas inlet
stub for connection to an inlet of the filter and with a gas outlet stub for connection
to an outlet of the filter, the filter being provided with a housing, which is
at least partly filled with filter material and to which the inlet and the outlet
are connected, and with a quick-change coupling arranged for cooperation with the
filter coupling of the base, the coupling containing the inlet and the outlet of
the filter, the base being provided with a mechanism for manually connecting the
filter to the base, and being provided with a sealing mechanism for automatic,
gastight sealing of the gas outlet stub and the gas inlet stub when decoupling
the filter from the base.