What equipment is referred to as a "closed mixing system"?

A "closed mixing system" is specifically designed to protect users from pesticide exposure during the mixing process. This equipment minimizes the potential for pesticide particles or vapors to escape into the environment, reducing the risk of inhalation or dermal contact by the operator. By employing seals, filters, or containment structures, a closed mixing system ensures that the potentially hazardous materials remain contained throughout the mixing operation.

In contrast, equipment that mixes pesticides in an open environment can expose users to harmful chemicals, while systems requiring manual mixing may not provide adequate protection. High-pressure spray machines focus on application rather than mixing, and while they can also feature safety measures, they do not inherently represent a closed mixing system. Thus, the primary characteristic that defines a closed mixing system is its emphasis on user safety from exposure during the mixing stage.