Air Systems' small HEPA filtered portable fume extractor, Model PFE-230, provides 230cfm flow through a 5" hood and magnetic base stand. Ideal for many small welding and soldering applications where large cabinet style fume extractors are not practical, such as, spot or bench top welding. The PFE-230 features removable slag tray, spark screen, 3 pleated pre-filters and a final HEPA filter (99.97% at 0.3 micron).