Donaldson BOFA - Replacement Pre-Filter (pack of 5) [PrintPRO 2 & PrintPRO 3] (1UA1030102)

Pre-Filter Efficiency and Its Impact on HEPA Filter Longevity

The performance of the Pre-Filter is crucial for extending the life of the HEPA filter. By capturing more particulates at the Pre-Filter stage, fewer particles pass through to the HEPA filter, preventing premature clogging and maintaining optimal efficiency.

Efficiency Ratings of Pre-Filters:

• Standard Pre-Filters (F5 - F7):

  • For plastic laser applications, the particulate size generated is typically around 0.2 microns:
    • F5 efficiency: 25%
    • F7 efficiency: 65%
  • For metal laser applications, where particulate size is generally below 1 micron:
    • F5 efficiency: 65%
    • F7 efficiency: 80%

• BOFA F8 Grade Media:
  BOFA’s advanced fume purification systems use F8 grade Pre-Filters, offering superior efficiency:

  • 80% efficiency at 0.2 microns
  • 95% efficiency at 1 micron

This enhanced filtration not only improves air quality but also reduces the load on the HEPA filter, significantly extending its service life and reducing replacement costs.