Allegro Industries 9450-PF Pleated Pre-Filter for Portable Fume Extractor - 6 pcs

Allegro filters and pre-filters are offered in six different combinations and allow maximum flexibility for varying work applications (including HEPA for Hexavalent Chromium control and 95% for carbon steel weld fumes). All filters are made in the USA.

The Allegro pre-filter is used to capture large particles of metal dust and dirt found in weld fumes, passing the smaller particles on to the main or HEPA filter. Replacing this filter as indicated by the extractors filter status light will help ensure maximum life of the main or HEPA filter.Efficiency Rating 40% at 5 microns.