ventilation systems; Pre-filters for gas turbines; Special industries such as nuclear, defense; Circulation filtration system in clean room; Pre-filters for HEPA filtration systems in limited area.

The Paper Frame Panel Air Filter is used in general ventilation systems, and has the characteristics of large filtering area, low resistance and long service life. It can be used as a pre-filter of a high-efficiency filter, thereby effectively extending the service life of the high-efficiency filter