Can sodium hypochlorite solution be used to disinfect air?


Release time:

Mar 27,2025

Sodium hypochlorite solution can be used to disinfect the air, but it needs to be used with caution.

Sodium hypochlorite solution can be used to disinfect the air, but it needs to be used with caution. The following are specifics:
Disinfection principle
Sodium hypochlorite solution produces hypochlorous acid with strong oxidizing property through hydrolysis, and the new ecological oxygen produced by the decomposition of hypochlorous acid can oxidize bacteria and other microorganisms, so as to play the role of disinfection and sterilization. When used for air disinfection, it is mainly through the solution volatilized into the air, contacting with the microorganisms in the air and undergoing oxidation reaction, destroying the structure and function of the microorganisms, so as to achieve the purpose of disinfecting the air.
Usage
Usually by spraying. Dilute the sodium hypochlorite solution to a suitable concentration, usually 500 - 1000mg/L, and then use a sprayer to evenly spray the solution into the air. Close the windows and doors and allow the solution to work in the air for about 30 minutes before ventilating.
Precautions
Concentration control: Too high a concentration may cause irritation and injury to the human respiratory tract and eyes, and may also have a corrosive or bleaching effect on indoor objects; too low a concentration may not achieve the desired disinfection effect.
Personnel protection: During the spraying process, the operator should wear masks, gloves and other protective equipment to avoid the solution from contacting the skin and inhaling the volatile gases.
Environmental impact: Sodium hypochlorite solution has certain corrosive and bleaching properties, which may cause damage to metal objects, fabrics, furniture, etc. Attention should be paid to the protection of these objects when using it, which can be covered in advance.
Ventilation: After disinfection is completed, ventilation should be carried out in time to reduce the residual concentration of sodium hypochlorite in the air and reduce the harm to human body and the impact on the environment.
Applicable scene: It is suitable for some relatively closed and less people enter the space, such as unoccupied wards, warehouses and so on. For places with dense personnel or frequent people activities, such as offices, classrooms, family living rooms, etc., it is not recommended to use sodium hypochlorite solution frequently for air disinfection, because its volatile gas may have adverse effects on human health.