Like other vehicles, locomotives should have proper filtration system. The air used for this filter should be refined. Due to the use of locomotives for various purposes, providing enough air and lack of high pressure at certain intervals is important.

Due to the importance of low pressure drop in locomotives, the use of filters with high efficiency bedding is not possible, but the use of nano-fiber coatings overcomes this problem so that using the nano filter can produce the highest filtration quality required while flow rate of System requirements are also provided.