What is the primary feature of a bulb duster?

The primary feature of a bulb duster is that it is designed with a balloon-shaped reservoir that operates through the action of squeezing. This manual operation allows for precise application of dust or powder pesticides into targeted areas without the need for electrical power or complex machinery.

This design is particularly beneficial for applying treatment in hard-to-reach areas where a fine, controlled distribution of pesticide is necessary. The bulb duster is lightweight and portable, making it a practical choice for both professional applicators and homeowners. It provides the operator with the ability to easily control the amount of dust being released, thus minimizing waste and ensuring that the pesticide is applied effectively and accurately.

In comparison, devices that require metal construction or electrical power may have different functionalities or applications, but they do not embody the unique and user-friendly characteristics that define a bulb duster. Similarly, a multi-functional device that holds both liquids and dust may serve distinct purposes but lacks the specific focus on dust application that a bulb duster provides.