... suppression 3.Highly Efficient 5.CE, ISO, CCC DS-150 coal dust control machine ITEM: DUST SUPPRESSION SPRAYER MODEL DS-150Features ... % ~ 80%, wide coverage area.Scope of Application Environmental protection, mining, coal yard, ports, docks, steel mill, and other large construction site ... dust particle can more easily impacts the droplet! DS-150 coal dust control machine mist blower mining machinery