What PPE should be worn to protect your lungs from pesticide exposure?

• A. Air-supplying respirators
• B. Air-purifying respirators
• C. Dust masks
• D. Surgical masks

Answer: (A)

To protect the lungs from pesticide exposure, air-supplying respirators are the safest choice. They provide their own source of breathing air, so you’re not relying on the surrounding air to be clean or adequately oxygenated. This is crucial with pesticides, because some compounds can exist as vapors or aerosols that are difficult to filter completely, and some environments may have low oxygen or unknown contamination levels. Air-purifying respirators filter the ambient air using cartridges or filters, which works only if the contaminants are known, the concentration is within the filter’s capacity, and there is enough oxygen. If those conditions aren’t guaranteed, protection can be inadequate. Dust masks and surgical masks don’t provide adequate respiratory protection against pesticide vapors or fine aerosols and don’t seal to the face like respirators, so they aren’t suitable for this hazard. In short, when safeguarding the lungs from pesticides, the reliable option is an air-supplying respirator that delivers clean air directly to the wearer.