The package should be torn open during the effective period of sterilization, and then the oxygen mask should be removed. Secondly, the oxygen mask was put over the mouth and nose of the patient, and then the oxygen mask was fixed on the mouth and nose. The oxygen tube joint is to be connected...https://www.rollmed.net/face-shield/oxygen-mask-usage.html
Oxygen Mask Usage
Spedito - 26/11/2020 : 12:36:17
