How often to replace the mask

Disposable masks are usually replaced every four hours under regular use. During the epidemic, if the general population is in an ordinary environment, if the one-time wearing of the mask does not reach four hours, the mask can be recycled a second time in order to save the mask, but it is not recommended to sterilize the mask, otherwise, the mask will be lost. protective effect.

Generally, the mask can be hung in a dry and ventilated place, and it can be used for the second time, but it is not recommended to use it for a long time, because if the mask is used for a long time, large particles will adhere to the surface of the outer layer of the mask, and some fine particles will adhere to the surface of the mask. It will remain in the filter gap of the middle layer, which will reduce the filtering effect of the middle layer and lose the electrostatic adsorption effect of the mask on the virus, which will greatly reduce the protective effect of the mask, so it is generally not recommended for masks to be too long—reuse of time.