Yīyòng kǒuzhào hé pǔtōng kǒuzhào de fánghù xiàoguǒ bùtóng.
Medical masks and ordinary masks differ in their protective effectiveness.
Tips
usage
医用 is an attributive adjective placed before a noun: 医用酒精 (medical alcohol), 医用手套 (medical gloves), 医用硅胶 (medical silicone). It is not used predicatively (*这是医用的 is grammatically awkward).