Negative pressure hood for transferring patients with respiratory infectious diseases

The negative pressure hood comprises a hood body, an exhaust pipe and an exhaust purification device, the upper end of the exhaust pipe is arranged in the hood body, and the lower end of the exhaust pipe is connected with the exhaust purification device; the hood body comprises a hood shell, a neck limiting sealing belt, a shoulder and chest lower hem, a fixing belt of the shoulder and chest lowerhem, a face transparent elastic air bag, an oxygen inlet pipe and two side transparent elastic air storage bags. The cover shell is supported on the periphery of the head of a transferred patient, the face elastic transparent air bag and the two side elastic transparent air storage bags are made of elastic films, the face elastic transparent air bag is located in front of the eyes of the transferred patient, and the two side elastic transparent air storage bags are located on the outer sides of the two ears of the transferred patient respectively. When a patient wears the negative pressure hood and starts the air exh