Replacement Filter Bags for the Quatro Infinity CollectAll dust collector as well as the Quatro Brushless Fume Extractor & Reclamation System designed for use with Sisma engravers and welders.  Sold in packages of 6 filters. 

The unit has a three-stage filtration system that captures fumes and particulate down to 0.3 Micron. This easily reclaimed bag filter captures large particles from grinding and polishing.  The other two filters are a media/odor filter which captures rhodium and/or soldering fumes and 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.