The utility model relates to the technical field of
medical treatment, and discloses a
respirator off-line training device which comprises a port plug connected with the mouth of a patient. One end of the connecting
pipe is connected with the mouth plug, and the connecting
pipe is connected with a
breathing regulating valve; the
breathing adjusting valve is used for adjusting the resistance of
breathing airflow. And the disposable heat and
humidity exchanger is arranged on the connecting
pipe and is used for humidifying and heating the
breathing gas. The circulation opening is formed in the disposable heat and
humidity exchanger and used for circulation of gas. Air is humidified and heated through the disposable heat and
humidity exchanger, it is ensured that the air inhaled by a patient is kept at proper humidity and temperature, the temperature and humidity in
exhaled air are recovered, and it is ensured that when the patient breathes with a tube, the phenomena that due to the fact that air is dry,
lung cilia lose functions, and
sputum is too dry, the patient is not likely to cough out are avoided.