medical mask 3d model

Create a realistic 3D medical mask based strictly on the attached sketch. The entire mask body is made from smooth, lightweight medical-grade PVC plastic with an ergonomic curved shape covering the nose and mouth. On the face-facing inner side, install a one-way valve that allows exhaled air to flow outward while preventing reverse airflow. On the outer side of the valve, place a clearly visible yellow color-indicator paper. Cover the indicator with a raised, protruding PVC housing containing small ventilation holes for exhaled air to escape. Airflow during exhalation: inside of mask → one-way valve → yellow indicator → raised housing → outlet holes. Add separate air-intake holes on both side areas of the mask for inhalation. Include a soft adjustable nose clip and flexible head straps. Show realistic PVC materials, smooth manufacturable geometry, professional medical-device design, front, side, inside and exploded views. Preserve the sketch's proportions and component positions. Do no