Deshengxin principal business activities comprise mainly in the design, manufacturing, and sales of FFU fan/Air shower fan/Air filter /HEPA /ULPA（Ultra Low Penetration )/FFU/Air shower/Clean Booth/clean bench/weighing room/laminar hood/clean sampling vehicle/safety cabinet/HEPA/ FFU control/Pass box/Air Shower Pass Box/Clean Supply Unit(HEPA Box)/Clean Hand Dryer/Filters/Dispensing Booth for Clean Room and clean room engineering etc.