Air Systems’ Portable Fume-Air™ 750 is designed for source capture of welding smoke and fumes. Different filter combinations can make the portable fume extractor (PFE) units versatile and cost effective. The PFE series operates at less than 80dbA. A non-metallic fumehood is supplied with an adjustable damper to control air flow velocity at the capture site.Air Systems International, Inc., Chesapeake, VA.