Open the oxygen cylinder switch order:
Watch the pressure gauge → Spell the oxygen cylinder switch → Adjust the flow rate → Wear the oxygen inhaler tube to inhale oxygen
As above, according to the counterclockwise direction to open the oxygen cylinder switch is recommended to rotate more than 180 degrees, that is, rotate more than half a circle, so that you can avoid the switch to open the small pressure can not be completely released, resulting in a small amount of oxygen storage error. This can avoid the switch is opened too small pressure can't completely release the misjudgment of the oxygen storage capacity is small, at the same time look at the pressure gauge, this time the pressure gauge should be jumped from the scale 0 to a certain position, the pressure gauge jumped up that there is still oxygen, if the pressure gauge has been in the 0, you can open a little bigger to confirm that if the pressure gauge pointer is still not moving, it means that the oxygen has been used to the empty. If the pressure gauge needle is still not moving, it means that the oxygen has been used up. After adjusting the flow rate with the flow regulator valve to a suitable level, you can take on the oxygen absorbing tube to absorb oxygen.
The order of closing the oxygen cylinder switch:
Watch the pressure gauge → Close the oxygen cylinder switch → Confirm that the pressure gauge is back to zero and the humidification bottle is not bubbling → People can leave
Do not close the flow regulator valve after the end of the oxygen inhalation, and close the valve of the oxygen cylinder clockwise, and then watch the pressure gauge pointer rotate to the direction of 0, if so, please wait for the humidification bottle to stop bubbling. Please wait for the tidal cylinder to stop bubbling inside the cylinder can confirm that the oxygen cylinder is closed. At this time you can close the flow regulator valve (not recommended).