A mask used to wear a mask while wearing a surgery while surgery to prevent blood or phlegm of patients and prevent phlegm or saliva of doctors going to contamination during surgery.
The mask worn during surgery. Wear a mask to prevent bleeding during surgery. Secretions of patients Phlegm and prevent Or saliva of physicians to contamination during surgery.
A mask used to wear during operation As a mask worn during operation to prevent blood or sputum of patients and prevent the phlegm. Or saliva of doctors to contamination during operation