Is the defogging film safe to operate continuously in a wet bathroom environment?

A correctly specified and certified defogging film is engineered for permanent wet-zone operation. Products meeting IP65 certification have been validated against dust ingress and water jet exposure. Critically, the film should demonstrate zero leakage current under sustained humid conditions — this is a mandatory test item under CE, UL, and SAA certification protocols. Buyers should request test reports confirming leakage current compliance, not simply accept a certification number at face value.