Abstract: A device for conditioning recirculating air in a cleanroom has at least one fan having a housing. A return air conduit is provided through which a first portion of recirculating air is supplied from the cleanroom to the at least one fan. A second portion of the recirculating air is directly supplied to the at least one fan by bypassing the at least one return air conduit.

Abstract: An adsorber for cleaning raw gas has at least one filter element wherein the at least one filter element is made of electrically conducting adsorber material. A filter module has a module housing in which such an adsorber is arranged. The housing has at least one inlet opening for the raw gas entering the filter module and at least one outlet opening for the clean gas exiting the filter module. A first ventilation damper unit closes the inlet opening as needed and a second ventilation damper unit closes the outlet opening as needed for performing regeneration and adsorption phases.

Abstract: A device for conditioning recirculating air in a cleanroom has at least one fan having a housing. A return air conduit is provided through which a first portion of recirculating air is supplied from the cleanroom to the at least one fan. A second portion of the recirculating air is directly supplied to the at least one fan by bypassing the at least one return air conduit.

Abstract: A ceiling arrangement for clean rooms has profiled beams with end faces and connecting members having at least two end faces that are connectors for the end faces of the profiled beams. The end faces of the profiled beams are connected to the connectors of the connecting members to form a flush connection. A sealing member for sealing each one of the flush connections is provided. For each one of the flush connections the end face of the connecting member or the end face of the profiled beam has a groove in which the sealing member is received.