Respiratory process simulation: real-time visualization of lung expansion and contraction with color-coded airflow markers, enabling observation of the complete respiratory cycle from alveolar ventilation to gas exchange. Modular system: includes modular components and a detailed assembly guide to promote spatial-logical thinking and manual dexterity through practical assembly activities; ideal for interactive learning and systematic skill development through logic training. Adaptive teaching: an adaptable model that supports tailored instructional units; multi-stage demonstration options accommodate different learning needs and classroom formats. Wide application scope: designed for use in diverse educational contexts; optimal knowledge transfer through tactile experiences from school practicums to home learning environments with clinically relevant application examples. Applications: - In high school biology classrooms during respiratory physiology modules: students observe real-time lung mechanics with color-coded airflow to connect structure and function. - In undergraduate or professional training labs: instructors design experiments on ventilation and gas exchange, using the model to illustrate dynamic processes and reinforce concepts. - In home or remote learning: guided activities and clinically relevant examples support independent practice and family-based learning.