protective face mask 3d model

Create a realistic 3D model based strictly on the attached hand-drawn sketch. The design is a medical protective face mask covering the nose and mouth, with an ergonomic curved cup-shaped body made from flexible medical-grade PVC or polymer. The front center of the mask has a circular one-way valve for airflow. The valve should include a visible valve mechanism and a removable protective cap. Add a soft adjustable nose clip along the upper edge of the mask. Include flexible elastic straps extending around the user's head to hold the mask securely in place. The mask body should have a smooth matte white or slightly translucent appearance, with soft silicone or rubber sealing edges where the mask contacts the face. Use realistic medical-grade materials and manufacturable industrial-design geometry. Keep the overall shape, proportions, valve position, nose clip position, and component arrangement consistent with the original sketch.