Techniques for controlling particulate emissions are all based on the capture of the particles before being released into the atmosphere. The method used to achieve these goals is affected by particle size. Some of the tools used for this purpose include gravitational settling chamber system, cyclone collector, polisher / wet brush and electrostatic precipitator. In the deposition chamber gravitas, the gas stream is passed into a room large enough so that the gas velocity will decrease and the time to stay in the room long enough to settle the dust. Typically the particle size of more than 50 microns that can be done this way. As for the smaller size is not practical to use in this way. Cyclone collector system used is based on the fact that the gas flowing by the spirals rotate to generate centrifugal force suspended particles so that the particle is pushed out of the gas stream kedinding tubes where the particles are collected. Such units have the cleaning efficiency of 95% for particles with a diameter of between 5-20 microns. Purifier that uses liquid (water) to help remove contaminants solids, liquids, or gases called scrubber / brush wet (wet scrubber). The effectiveness of this kind of tool is influenced by the level of contact and interaction between the liquid phase with the contaminants to be cleaned. Another way is to pass the liquid decreases through a bed that is packed in a tube, while gas containing particles is moved in the opposite direction, which rose through the bed of the (Stripper) System electrostatic precipitator is based on the fact that a particle moving through a section that has electrostatic potential have a high tendency for charged, wherein the particle – the particle will then be attracted to the oppositely charged another where the particle will accumulate