When should you replace your CPO if it becomes wet through the inner lining with any of these materials such as petroleum oil?

You should replace your CPO (Chemical Protective Outerwear) if it becomes wet through the inner lining with petroleum oil or any hazardous substance. Exposure can compromise its protective capabilities, potentially allowing harmful chemicals to penetrate. Additionally, if the outer material shows signs of damage or degradation, it is crucial to replace it to ensure ongoing safety. Regular inspections will help determine when replacement is necessary.