Which of the following materials should never be used as PPE when applying pesticides?

• A. Cotton
• B. Nitrile
• C. PVC
• D. Tyvek

Answer: (A)

PPE must provide a chemical barrier, so fabrics used for protection need to resist the pesticides being applied. Cotton is not chemically resistant; pesticides can permeate cotton fibers and be absorbed into the fabric, increasing skin exposure and leaving residue on the wearer. In contrast, nitrile, PVC, and Tyvek are synthetic barrier materials designed to resist permeation by many pesticides, making them suitable for protective use. Nitrile gloves are a common chemical-resistant option, PVC offers strong barrier protection, and Tyvek provides a protective suit that helps prevent contact with the eyes, skin, and clothing. Always match the material to the specific pesticide’s properties per the label, but cotton should not be relied on for PPE during application.