Turn off the heating switch → turn off the ventilator switch → take off the mask → unplug the power plug. Vg70 ventilator can be placed slightly below the bedside, and the place where the filter cotton is placed should not be blocked by foreign objects. It is best to have a space of 15cm away from the wall.

Install the ventilator pipeline correctly, add distilled water or purified water to the ventilator humidifier, and connect the power supply. Connect the oxygen inhalation device (oxygen generator) and the oxygen inhalation tube with the three-way connecting tube, adjust the oxygen flow to a suitable level (1 ~ 2l/min or set according to the engineer's instructions), wear the mask correctly, and the tightness of the headband should be 1 ~ 2 fingers, so that the patient's face can be closely attached to the mask.