The difference between medical masks and ordinary masks is the function of protection. Ordinary masks generally do not have the functions of waterproofing and filtering, but medical masks have the functions of waterproofing and filtering. Medical masks generally contain a three-layer structure. The outermost layer, which is a dark colored layer, is generally made of water-resistant materials to prevent liquid leakage. The middle layer is generally made of some filtering material, which is melt blown. The materials are more common and contain a lot of static electricity, which can adsorb particulate matter in the air. The innermost layer is generally made of skin-friendly materials, which can relieve the sultry feeling under normal circumstances. This is the difference between medical masks and ordinary masks. Ordinary masks are relatively simple in structure and do not have a three-layer structure. The above difference is for reference only. For specific examination and treatment measures, you should consult a professional doctor in the hospital.