Nausea and vomiting in air conditioning is a clinical manifestation of air conditioning disease involving the gastrointestinal tract because of long-term exposure to the air conditioning environment. When a person is in an air-conditioned environment for a long time, the room temperature is too low, blood vessels are constricted, sweat gland secretion is reduced, and the skin mucosa loses moisture due to dry air in the room, resulting in dysfunction and the accumulation of metabolic waste in the body, making it easier for bacteria and viruses to invade the body and breed in large numbers. When air conditioning disease involves the gastrointestinal tract, it can show clinical symptoms such as anorexia, abdominal pain, diarrhea, nausea and vomiting.