Bag filters are used to filter out impurities from liquids or gases in various industries such as oil and gas, food and beverage, pharmaceutical, and many others. There are several benefits associated with the use of this type of system:

1. High efficiency: Bag filters can remove very fine particles and impurities from liquids and gases, which makes them highly efficient. 

2. Low maintenance: Bag filters can be cleaned or replaced quickly and easily, which reduces downtime and maintenance costs.

3. Versatility: Bag filters can be used for a wide range of applications and can be customised to suit specific industry requirements.

4. Cost-effective: Bag filters are relatively inexpensive compared to other types of filters, and their low maintenance requirements and long service life.

5. Environmental friendly: Bag filters are an environmentally friendly filtration solution because they can be reused and recycled.