Nederman extraction arms are used to capture harmful fumes at the source. There are a variety of extraction arms to choose from depending on your application. The Original Extraction Arms are perfect for extracting welding smoke, fumes and dust in workshops. There is also a corrosive resistant (CR) option that was designed for work environments such as food, pharmaceutical and chemical industries. The NEX MD and HD Extraction Arms are at the top of the range when it comes to high airflow and welding fume source capture. These were designed for situations where there is heavy smoke and vapors. The NEX-D and DX are ATEX approved dust extraction arms for industries that place a high priority on hygiene. Additionally, there is the NEX S which is also ATEX approved but is acid-proof and stainless steel.