When handling a minimal exposure pesticide, respiratory protection is not required if an employee is __________________.

The correct answer highlights a specific scenario involving the use of equipment that minimizes exposure to pesticides, particularly in relation to respiratory protection requirements. When an employee is using equipment with vehicle-mounted spray nozzles that are directed downward and located below the level of the employee, this configuration significantly reduces the potential for inhalation exposure to pesticide aerosols and vapors.

In this case, the downward direction of the nozzles helps to direct the spray away from the operator's breathing zone, making it less likely that they will inhale pesticide particles. Moreover, keeping the nozzles below the worker's level reduces the likelihood of drift or cloud formation that could disperse into the air.

Thus, under these conditions, the use of respiratory protection is not deemed necessary because the risk of exposure is minimized. Understanding these technical aspects of application equipment and their implications for worker safety is vital for ensuring compliance with pesticide regulation standards and protecting the health of those involved in pesticide handling.