What disinfectant should be used to kill viruses?

Commonly used disinfectants for killing viruses include chlorine-containing disinfectants, 75% alcohol-based disinfectants, peracetic acid disinfectants, quaternary ammonium salt disinfectants, and hydrogen peroxide disinfectants. Appropriate products should be selected based on the disinfection setting and virus type to ensure effectiveness. If skin contact with a disinfectant causes redness, swelling, or stinging, or if a disinfectant is accidentally ingested, immediate medical attention is recommended.

1. Chlorine-containing disinfectants: For example, bleach such as "84 Disinfectant," must be diluted according to instructions before use. Suitable for disinfecting hard surfaces like floors, tables, and chairs, effectively inactivating viruses including SARS-CoV-2 and influenza virus. However, due to its strong corrosiveness, it should not come into contact with skin or metal objects.

2. 75% alcohol-based disinfectant: Ideal for disinfecting hands and small personal items such as mobile phones and keys. It kills viruses by denaturing viral proteins. The alcohol concentration should not be too high or too low, and it must be kept away from open flames to prevent fire hazards.

3. Peracetic acid disinfectant: Highly effective at killing microorganisms and suitable for environmental and object surface disinfection. Must be diluted before use. However, it has poor stability and a strong irritating odor. Adequate ventilation is required during use to avoid inhaling excessive fumes.

4. Quaternary ammonium salt disinfectants: Such as benzalkonium chloride solution, these are less irritating and can be used for disinfecting skin, mucous membranes, and clothing. They are effective against various viruses, have low corrosivity, and are suitable for routine household disinfection.

5. Hydrogen peroxide disinfectant: For example, 3% hydrogen peroxide solution, which can be used for wound care and surface disinfection. It destroys viral structures by releasing oxygen and decomposes easily into water after use, making it environmentally friendly. However, it should not be stored for prolonged periods.

Always read the product instructions before using any disinfectant to understand proper dilution ratios and appropriate applications. Never mix different types of disinfectants, as this may produce toxic gases. After disinfection, ensure adequate ventilation to minimize residual chemical exposure and reduce potential health effects.