Designed to generate airflow by manually rotating a handle, which in turn rotates internal impellers. These types of blowers are utilized for various purposes, including creating a draft for fires, cleaning dust and particles from surfaces, and in some industrial applications for pneumatic conveying. The specific model seen in the image is black with a silver nozzle and has the text "BRO" printed on its side. Manual blowers like this offer a portable and non-electrical solution for tasks requiring a directed stream of air.