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

You should replace your CPO (Chemical Protective Outerwear) if it becomes wet through the inner lining due to exposure to petroleum oil or hydraulic fluid, as these substances can compromise the protective qualities of the garment. Even if the outer layer appears intact, the integrity of the inner lining may be compromised, reducing its effectiveness against hazardous materials. It's crucial to prioritize safety and ensure that your protective gear provides the necessary barrier against contaminants. Regular inspection and timely replacement are essential for maintaining optimal protection.