Glove device for protected intervention in a containment

A glove device with a glove for protected intervention in a work chamber of a containment through an access present in a port flange, wherein:

• a) the port flange is installed in a front window or in a wall of a housing of the containment positioned in an installation space;
• and
• b) equipment for processing a material to be treated can be provided in the work chamber, wherein:
• c) the glove device is designed as a module, in the form of an insert, which can be inserted gas-tight into the port flange;
• and comprises:
• da) a seal, which is arranged on one side and is removable or is to be opened;
• db) on the other side a cover part, which is releasable from the module;
• de) the glove vacuum-packed between the two sides, which glove has an inner face and a surface
• df) a free end of the glove is fastened to a fixing part and/or to the seal in the vicinity of the fixing part, wherein the seal at least substantially spans the clear width of the fixing part;
• and
• dg) when the cover part is mounted on the glove device and the seal is intact, the seal is visually noticeably curved concavely relative to the glove device as a result of a negative pressure between the cover part and the seal.