1. DURABLE PERFORMANCE: Thanks to the robust polypropylene material, this lung model meets the requirements of functionality. It provides reliable performance in school trials and demonstrations of the respiratory system. The clear and precise representation of lung functions makes it a valuable tool for teaching. Its durability guarantees longterm use without sacrificing quality. 2. IMPROVED LEARNING ENVIRONMENT: With a design that promotes concentration and attention, this lung model eliminates interference during experiments and integrates an effective odor control process. This significantly improves the learning environment and increases concentration. 3. STABILITY FOR LEARNING PROCESSES: With a reinforced structure, the reusable assembly system promotes longterm use as an educational tool, carefully crafted to increase durability and allow continuous learning about the lung system. 4. DURABILITY AND SAFETY: The lung model impresses with rounded edges and construction, ensuring the safety of students during use. By eliminating sharp corners and potential hazards, safe handling is . The model is robust and ideal for longterm use in schools and educational institutions without compromising safety.