This hospital-specific biohazard bag features a self-sealing zipper design, with sealing reliability testing reaching 99.8%, specifically developed for safe medical specimen transport. Made of medical-grade polypropylene material, with a thickness of 3 MIL, tear resistance strength of 7.2N, supporting frozen (-20°C), refrigerated (2-8°C), and room temperature storage. The prominent biohazard symbol and temperature marking system follow WHO guidelines for biological sample transport safety, suitable for transporting various specimens including blood and tissue, with an effective isolation rate of 98.7%, significantly reducing biological safety risks to medical personnel by 75%, providing a professional solution for specimen transport safety management.