INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING DEVICE, ACCLIMATIZATION INDICATOR DISPLAY DEVICE, AND METHOD FOR CONTROLLING INFORMATION PROCESSING SYSTEM
An information processing system includes: a measuring unit which measures biological information of a user present in a closed space and a processing unit which controls an environmental state of the closed space on the basis of the biological information. The processing unit controls a pressure which is an air pressure or partial pressure of oxygen in the closed space, or a concentration which is an oxygen concentration, on the basis of the biological information.