Another important component used for dust collection in grain cleaning facilities is local filters. Local filters are used to capture dust and other particles, usually by focusing them on a specific spot or area. These filters generally work by creating a vacuum or suction force.

The working principle of local filters is to draw in dirty air and capture dust and other particles through the filtering material. The cleaned air is then returned to the system or exhausted. Local filters can be used effectively at a specific spot or process where dust collection is needed.

These filters are especially useful in situations where a particular process produces extensive dust. For example, during the grain cleaning process, local filters can be used to locally collect dust produced by cleaning machines. This complements the overall dust collection system, providing more effective dust control.

Local filters play an important role in businesses to ensure the cleanliness of employees and the surrounding area. They are also important to prevent dust from affecting product quality and improve operating efficiency.