Glutaraldehyde generally requires 15 to 20 minutes of immersion to destroy the hepatitis B virus. Glutaraldehyde has a broad-spectrum ability to kill microorganisms, and can kill bacterial propagules, bacterial spores, viruses and other pathogenic microorganisms. The initial concentration of glutaraldehyde should be higher than 2% in principle. Many factors will cause a decrease in the concentration of glutaraldehyde during use, such as polymerization of alkaline glutaraldehyde, dilution with water, frequency of use, etc. Therefore, the concentration of glutaraldehyde needs to be monitored daily. Glutaraldehyde has two aldehyde groups and thus can react with two amino and hydroxyl groups (mainly amino) to enhance cross-linking within proteins, and this increase in cross-linking will destroy the secondary structure of proteins, which will lead to protein denaturation and achieve the purpose of disinfection. Glutaraldehyde is irritating to the skin and mucous membranes, non-professional need to try not to contact, if you need to contact the solution should wear gloves to prevent splashing into the eyes or inhalation.