How long is the transfer time of the biosafety airtight transfer window?

There is no fixed standard for the transfer time of biosafety airtight transfer Windows. It mainly depends on the disinfection method of the transfer window and the set disinfection time. The common situations are as follows:
Ultraviolet disinfection: Generally set for 15 to 30 minutes. As required in the operation procedures of the transfer window formulated by Fudan University, the ultraviolet lamp should be turned on to irradiate the items inside the transfer window for no less than 15 minutes. Some standard operating procedures of laboratory animal centers also mention that when using 75% ethanol solution for spray disinfection and ultraviolet irradiation, the ultraviolet irradiation time should be 30 minutes.
Hydrogen peroxide disinfection: If hydrogen peroxide gas is used for disinfection, the disinfection time is usually more than 30 minutes. For instance, when some transfer Windows are disinfected with hydrogen peroxide gas, the disinfection time is set at 30 to 60 minutes to ensure that the surfaces of the items and the interior space of the transfer Windows are thoroughly disinfected and sterilized.
Aqueduct liquid disinfection: When using the aqueduct transfer window for liquid disinfection, the items need to be soaked in the aqueduct disinfectant for 30 minutes. Items with a specific gravity greater than that of the disinfectant can be directly pushed through the middle partition and taken out after 30 minutes. Items with a specific gravity lower than that of the disinfectant should be immersed in the liquid by methods such as binding heavy objects. After 30 minutes, they should be pushed through the middle partition and taken out.
In practical applications, the disinfection time can be appropriately adjusted and optimized based on specific experimental requirements, item characteristics, as well as the performance of the disinfection equipment and disinfectants used. At the same time, the interlocking function of the doors on both sides of the transfer window and the related operation procedures should also be considered to ensure that the items can be safely and promptly transferred to the other side after disinfection is completed.