An oxygen mask is a medical device designed to deliver supplemental oxygen from a storage source to a person's lungs, covering the nose and mouth to provide concentrations between 24–90%. Commonly made of clear, medical-grade PVC, they are used for patients needing oxygen therapy due to respiratory distress, emergencies, or post-surgical recovery.
It is made of PVC material. Elastic band, atomizing cup has good sealing performance, no penetration, low noise, product packaging 100 pcs/carton.