Filter arrangement and prototype production system

Abstract

A filter assembly, characterized in that it is intended for use in a prototyping system, the prototyping system comprising a housing, the housing enclosing a receiving chamber; the filter assembly comprising an internal circuit filter assembly, the internal circuit filter assembly comprising a first air inlet and a first air outlet, as well as a first air duct connecting the first air inlet to the first air outlet, both the first air inlet and the first air outlet being in communication with the receiving chamber; the internal circuit filter assembly further comprising a first fan and a first filter assembly, the first fan serving to draw exhaust gases from the receiving chamber through the first air inlet, the exhaust gases being discharged from the first air outlet via the first air duct after filtration by the first filter assembly.and / orwherein the filter arrangement comprises an external circuit filter arrangement, wherein the external circuit filter arrangement comprises a second fan and a second filter arrangement, wherein a second air duct is arranged on a side wall of the housing, which second air duct establishes a communicating connection between an inside of the receiving chamber and an outside of the receiving chamber, wherein the second fan and the second filter arrangement are arranged in the second air duct;wherein the second fan is arranged such that the exhaust gases from the receiving chamber are discharged to the outside of the receiving chamber via the second air duct.;

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