(1) tincture of iodine: it is an intermediate disinfectant. Usage: Disinfect the skin around the injection site, operation site and wound with 2% iodine tincture. After 65438 0 minutes, iodine was removed with 75% ethanol. (2) Iodophor: medium disinfectant. Usage: used for disinfection of skin and mucosa. (3) Hydrogen peroxide: an efficient disinfectant. Uses: used to disinfect surgical buried objects made of acrylic resin, heat-resistant plastic products, tableware, clothes, drinking water, mouthwash, surgical washing wounds, etc. (4) Glutaraldehyde is a sterilizing agent. Usage: Ordinary soaking method. 2% glutaraldehyde is often used to soak heat-labile medical instruments and precision instruments, such as endoscopes. Disinfection time is 20 ~ 45 minutes, and sterilization time is 10 hour. (5) Ethanol: an intermediate disinfectant. Usage: used for disinfection of skin, surface of articles and medical instruments.