A thermal processor includes an oven for thermally developing an imaging
media which produces gaseous contaminants during development. The gaseous
contaminants includes odorous portions and condensable portions which
have a condensation temperature. A contaminant removal cartridge has a
housing configured to couple to the oven, a heat exchanger, and a filter
module. The heat exchanger receives from the oven at least a first air
flow at a first temperature, wherein the first temperature is above the
condensation temperature, and including gaseous contaminants. The heat
exchanger cools the first air flow to a desired filtering temperature,
which is below the condensation temperature, to condense and collect the
condensable portion of the gaseous contaminants and form a filtering air
flow. The filter module receives the filtering air flow, to collect the
remaining condensed contaminants, and to absorb the odorous portion of
the gaseous contaminants to form an exhaust air flow.