Abstract: A ventilation unit for a freezer chamber, with a conduit and at least one heating element, wherein in the conduit, at least in sections, an air-permeable filler material is disposed, as well as a freezer chamber with such a ventilation unit as well as methods for operating such ventilation unit.

Abstract: The disclosure relates to a partition panel for the detachable insertion into a laboratory chamber, for example an incubator, cold chamber, heating chamber, drying chamber of climate chamber, wherein the partition panel comprises a substantially rectangular flat base body with a lower edge, an upper edge, a front edge, a back edge as well as two parallel side faces, wherein on the base body at least one insertion hook open toward the front edge and at least one spring element for generating a force in the direction toward the front edge are disposed.

Abstract: A ventilation unit for a freezer chamber, with a conduit and at least one heating element, wherein in the conduit, at least in sections, an air-permeable filler material is disposed, as well as a freezer chamber with such a ventilation unit as well as methods for operating such ventilation unit.

Abstract: A laboratory cabinet, for example a cold room, heating cabinet, drying oven or incubator, with a housing having at least one outer door with an outer door closure, which has at least one inner chamber, which is closable by an inner door with an inner door closure, wherein the inner door closure is a mechanical closure, that the laboratory cabinet with the outer door closed has actuatable first means for releasing the inner door closure of the inner door, which are electrically actuatable, and that the laboratory cabinet has second means which are designed such that upon opening the outer door, the inner door also opens.