The Simple Oxygen Mask is a medical device used to deliver oxygen to patients. It is a basic mask that covers the mouth and nose, allowing the patient to inhale high concentrations of oxygen. The mask is made of soft plastic, which can conform to different head sizes, and has adjustable nose pads and straps to ensure comfort and fit. This product is commonly used in emergency, critical care, and oxygen therapy, such as oxygen inhalation therapy for chronic obstructive pulmonary disease, asthma, pneumonia, and other diseases. During surgery, doctors may also use this mask to assist patients with breathing and maintain oxygen saturation. The Simple Oxygen Mask is an affordable and easy-to-use medical device that can be widely used in hospitals, ambulances, and home healthcare.