Mist, Smoke, and Fumes Heavy Oil Mist Special cyclone pre-filter for heavy oil mist application on CNC. Fume Scrubber MAPCO fume scrubber on nitric acid fumes. Magnesium Sanding 2000 CFM system with HEPA filters for heavy mist and smoke on a wet magnesium sanding operation. Foundry 4000 CFM system with high efficiency cartridge filters for toxic metal smoke from foundry. Plasma Cutting Custom roof-mount systems with spark drop-out boxes on plasma cutting. Fumes Custom hood for nitric acid bath fumes. Coolant Mist 6000 CFM mist collection on CNC coolant mist.