- Low resistance
- High dust holding capacity
- Large filtration area
- Used for cleaning room conditioning system, pre-filtration through fresh air venting units, and exterior air conditioning connection.
- Primary filtration of central air conditioning system.
- Pre-filtration at the inlet of Air purification equipment.
- Pre-filtration in medium filter.
- Primary filtration or secondary filtration in a filter system.
- Glass filber blank pre-filter in Ventilation system for outdoor fire-proof and high temp resistance working condition.