An air ion collimator is added to ionizers with integrated fans that are used to remove static charge. Three mechanisms minimize air ion losses through recombination. Hence, the collimator increases the air ions that are available for charge removal. First, reducing turbulence slows air ion mixing. Second, air entrainment into fast moving air ion zones further slows the rate of air ion losses by dilution. The rate of recombination reaction slows with decreasing ion density. Third, vanes within the collimator delay mixing. In addition to conserving air ions, the collimator directs more ions to the target. Air ions lost to grounding are reduced. Again, more air ions are available to remove static charge from the target.