Replacement HEPA filter for the Quatro SolderPure and  Infinity CollectAll dust collector as well as the Quatro Brushless Fume Extractor & Reclamation System designed for use with Sisma engravers and welders. .  Sold individually. The unit has a three-stage filtration system that captures fumes and particulate down to 0.3 Micron. 

This is a true HEPA filter which captures the smallest particulate down to subMicron levels. Returns 99.97% clean air to your shop, making outside ventilation unnecessary.