Handlers who properly mix pesticides packaged in water-soluble packets are considered to be using __________.

Using a closed mixing system is essential for handlers mixing pesticides packaged in water-soluble packets. This method significantly minimizes the risk of pesticide exposure to the handler and the environment. A closed mixing system is designed to prevent the release of pesticides into the air or onto surfaces during the mixing process. In this setup, the packets dissolve in water without exposing the handler to the chemicals, effectively reducing the likelihood of spills, splashes, or aerosolization of pesticide particles.

The primary goal of this approach is to enhance safety by containing the materials within a controlled environment. The closed system also supports compliance with safety regulations and best practices in pesticide application, ensuring that the handler's health is protected while allowing for efficient mixing of the product. By utilizing this method, handlers can perform their tasks more safely and effectively while minimizing environmental contamination.