The invention relates to a work bench comprising a working chamber surrounded by a housing, wherein the working chamber can be accessed via a working opening, comprising a supply air unit, with which pre-made supply air can be introduced into the working chamber, and comprising an exhaust air unit, with which exhaust air can be extracted out of the working chamber. According to the invention, the exhaust air unit is designed in such a way that exhaust air can be at least partially removed from the work bench and can be at least partially introduced into the working chamber via a supply air element.
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