Does the glove box emit gas?

Yes. Glove boxes are usually equipped with an exhaust system that allows gases from the glove box to be vented out of the laboratory through an air vent. Glove box is a kind of laboratory equipment used to handle toxic, hazardous or explosive substances, glove box usually consists of two interconnected parts, one is the treatment room, one is the operating room, the two parts are connected by gloves.