What does "waterproof" mean in the context of personal protective equipment?

In the context of personal protective equipment, the term "waterproof" refers to the ability of a material to completely prevent any measurable movement of water through it during use. This characteristic is crucial for ensuring that the wearer remains dry and protected from potential water exposure, which is important in various work environments where chemicals, pesticides, or other liquids may be present.

Waterproof materials are specifically designed to block moisture from penetrating the fabric, creating a barrier that maintains the integrity of the protective gear. This is particularly significant in pesticide application, where exposure to water can lead to not only discomfort but also compromise the protective qualities of the gear, potentially resulting in health hazards.

In contrast, options that suggest some degree of moisture penetration, such as allowing measurable movement of water or being water-resistant, do not align with the strict definition of waterproof materials. Understanding this distinction is essential for safety and compliance in handling potentially hazardous substances.