Which protective equipment is optional when handling hazardous pesticides?

When handling hazardous pesticides, the correct choice of optional protective equipment is the respirator. While a respirator is important for ensuring that a worker does not inhale harmful pesticide vapors, droplets, or dust, the requirement for its use is typically determined by the level of risk associated with the specific pesticide being handled, the application method, and the conditions of use. In many cases, a well-ventilated area or working with low-risk formulations may reduce the need for a respirator.

In contrast, a chemical-resistant apron, long sleeve shirt, and face shield are considered essential in providing direct physical protection against pesticide exposure. The apron helps protect the skin and clothing from chemical splashes, long sleeves provide coverage of the arms, and the face shield protects the eyes and face from exposure to sprays or splashes. Therefore, the respirator is often deemed optional depending on the specific context and safety protocols surrounding the pesticide use, making it correct to identify it as the optional piece of protective equipment.