lung respiratory model diaphragm motion simulation demonstrator senior high school entrance examination experimental apparatus junior high school science biology senior high school entrance examination teaching aids

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【Lung Breathing Model · Scientific Experiment Teaching Tool】Provides an intuitive demonstration of diaphragmatic movement and breathing principles, helping students overcome the challenge of abstract understanding.

Medical-grade HUANBAO PVC material, safe and durable. The manual lever mechanism simulates diaphragmatic movement, clearly displaying lung expansion and contraction.

Certified by the China Education Equipment Industry Association, helping with biology experiment operations in the high school entrance examination. Unlock the mysteries of science, making breathing visible!