Feature: 1. Designed for emergency aid training, artificial resuscitation devices for ambulance. 2. PVC transparent face shield, perfect fit for patient face, reasonable shape. 3. PVC manual resuscitation, breathing resuscitation, ensuring smoothly breathing. 4. Suitable for cardiopulmonary resuscitation and general artificial respiration. 5. Come with complete accessories, convenient and easy for operation. Specification: Condition: 100% Brand New Item Type: Manual Resuscitator Material: Plastic Optional Type: Adult 3#, Child 2#, Baby 1# Usage of Oropharyngeal Airway: 1) The patient was supine with the head tilted to one side 2) Choose the appropriate model according to the age of the patient 3) Press the concave surface of the curved portion of the oropharyngeal airway up against the tongue and insert it gently into the mouth. When the end of the product is close to the back wall of the upper pharynx, rotate it 180 degrees to make the concave surface downward and push the airway to the appropriate position 4) For those with consciousness barrier and closing jaw, pry the jaw open with mouthpiece, put the tongue depressor plate into the tongue from the molar, place the concave surface of the oropharyngeal airway downward toward the throat, place the front end of the tongue at the root of the upper pharynx, and fix the end of the oropharyngeal airway outside the patient's upper and lower incisors 5) After successful placement, the oropharyngeal airway was fixed on the patients' bilateral buccal parts with adhesive tape.. Package List: 1 x Gas Bag 1 x Manual 1 x Face Shield 1 x Connecting Tube 4 x Assembling Accessory 1 x Breathing Tool Note: New and old models will be sent randomly.