The Helios LFBR 250 F7 is a high-performance pocket filter designed for use in inline duct ventilation systems. Constructed from durable synthetic plastic, it delivers effective filtration of fine particulate matter with an ISO ePM1 50% (F7) rating. The filter has a dust storage capacity of 88.6 g/m², ensuring long service life and consistent air quality. Its compact pocket design allows for efficient airflow while maintaining high filtration efficiency, making it ideal for commercial and residential HVAC applications requiring fine dust control.