Discerning the Terms of Fume Extraction

by: 

Chau Vo

Chau Thien Vo is an inventor, industrial designer, and is the Vice President of Engineering and Product Marketing for PAT Technology Systems. Chau brings 19 years of extensive experience in designing air purification and fume extraction systems, having worked in both North America and Europe. He blends design, engineering, product marketing, and creative thinking strategies in leading PAT’s technical team to consistently output innovations that clean air.

Extraction is a term that describes the primary process of extracting or pulling the fumes from a source. In this case, the source of fumes is the laser enclosure. The term filtration describes the secondary process of removing/capturing contaminants from the fume laden air using filters.

A common alternative secondary process is called venting. Venting describes the process of sending the extracted fumes to the outdoors. Therefore, filtered fume extractors usually refers to a machine that pulls fumes from a laser enclosure, filters the fumes out, and recirculates clean air back into the room. A venting blower or extractor generally refers to a specialized fan and duct system which pulls fumes from the laser enclosure and pushes the untreated pollutants directly outside into the environment. 

—Chau Vo, PAT Technology