The Mobile Filter Self-Cleaning / High Efficiency Ultra (MFS/HE ULTRA), with its UltraFlex-4 extraction arm, is a robustly designed mobile fume extractor that effectively removes hazardous welding and grinding fumes at-the-source. With the UltraFlex-4 extraction arm and its built in work lamp and auto start sensor, the MFS/HE ULTRA offers welders and fabricators an extremely flexible, user-friendly solution to capture fumes. The MFS/HE ULTRA is a high-efficiency (MERV 16) unit designed to meet more stringent local air and filtration quality standards required in applications such as stainless steel welding or removal of Hexavalent chrome. Designed with a RotaPulse system for automatic sectional cleaning of the filter cartridge, the fume and dust particles end up in the MFS/HE ULTRA dust tray. The MFS/HE ULTRA is optimal for small welding and fabrication shops, plant maintenance, schools and general fabrication and production facilities demanding a mobile fume extractor that can protect their personnel from hazardous fumes in multiple locations.