Level 1: Principles of radiation-proof maternity clothing Radiation-proof maternity clothing is clothing made of materials with radiation protection functions. It mainly uses these materials to absorb and reflect electromagnetic waves, thereby reducing harm to the fetus. These materials usually include silver fiber, copper fiber, metal wire, carbon fiber, etc. Level 2: Classification of radiation-proof maternity clothing. Radiation-proof maternity clothing can be divided into various types according to different usage scenarios and functions. , including pajamas specifically for sleeping, jackets for outdoor activities,