Medical or surgical face masks serve the same purpose. The terms are used interchangeably. They are resistant to aerosols, sprays and fluids. Please note that medical masks are not designed to filter small virus particles. They are intended to block droplets from the wearer to prevent contaminating the environment. They are not to be shared, and should only be used once. Surgical masks are also referred as disposable face masks. However, not all disposable face masks are regulated by the FDA. The regulated medical grade version is thicker by design and the face mask protects you from contact with liquid.