What method is used to test for leaks in personal protective equipment (PPE)?

The method of using soapy water to test for leaks in personal protective equipment (PPE) is effective due to the behavior of soap bubbles. When soapy water is applied to the seams, joints, or surfaces of PPE, any leaks will create bubbles that indicate the presence of air escaping from the equipment. This visual cue allows users to easily identify compromised areas that may need repair or replacement.

While other methods, such as ultrasonic testing, can also be employed for detecting leaks, they are typically used in more advanced industrial applications rather than routine checks for PPE. Electrical resistance is not a standard approach for leak detection in PPE, and visual inspection alone may not effectively reveal small, non-visible leaks. Therefore, the use of soapy water stands out as a direct and practical method to ensure the integrity of protective equipment.