1) Select the appropriate mask size for the patient;

2) Take out the Silicone Anesthesia Mask from the package, align the bottom of the Mask at the back of the patient's lower lip, and gently button down the Silicone Anesthesia Mask to cover the patient's mouth and nose;

3) Buckle the mask with the thumb, index finger and middle finger, and lift the chin of the patient with the remaining fingers if necessary;

4) There is no need to press down on the mask to ensure the seal: the material of the edge and the design of the human face anatomy ensure that the seal can be achieved with minimal pressure. Finally, the mask is fixed to the patient's face with a fastening strap.

Silicone Anesthesia Mask https://www.nblukemed.com/First_Aid/Silicone_Anesthesia_Mask.html