LD450 by Electrocorp is an excellent industrial air purifier for welders, solders, and laser engravers.
Industrial Air Filtration for Welding
 Electrocorp light duty  fume extractors offer a high draw solution to welding smoke and fumes. Our portable fume extractors feature at-the-source protection removing airborne chemicals, vapors, fumes and smoke directly from the workstation. Units feature 2" HEPA fume filters that capture airborne smoke particles and a 40 lb. deep bed activated carbon filter for chemicals, gases and smoke odor. Ideal for MIG, TIG, arc and robotic welding.
Industrial-strength - light duty welding smoke extractor
· TIG and arc welding operators
 · Soldering
 · Light manufacturing
 · Light plastic welding
 Eco-Friendly Features
 - Metal Housing
 - Ozone-free
 - Energy efficient
 - Refillable carbon canisters
 - North American parts and materials
 - North American assembly
 Technical Specifications
 - Carbon Filter 40 lbs., 10.5" depth
 - Filtration 2” HEPA
 - System 2” Pre-filter
 - CFM 250
 - Dimensions 22.5" x 16" x 29"
 - Options Custom carbon blend
 - LD450 Fume Extractor