Which piece of safety equipment is usually not needed when using pesticides with the signal word CAUTION?

The piece of safety equipment that is usually not needed when using pesticides labeled with the signal word CAUTION is a respirator. Pesticides with the signal word CAUTION indicate that the product is of lower toxicity compared to products that carry the signal words WARNING or DANGER. This classification suggests that the health risks associated with the pesticide are less severe, and the need for extensive protective gear is reduced.

In general, when handling pesticides that carry the CAUTION signal word, basic protective equipment such as rubber gloves, hats, and coveralls are more commonly necessary to prevent skin contact and ensure overall safety during application. A respirator is typically reserved for more hazardous chemicals where inhalation could pose a significant risk to health. Since pesticides that are classified as CAUTION have lower inhalation toxicity, a respirator isn't usually required, making it the correct choice in this context.