Energy model w/ air filtration

Air infiltration reductions are not an allowable energy saving strategy for LEED projects. The problem is that 90.1 does not establish a quantifiable baseline. Without this baseline the USGBC and the LEED reviewers have not allowed savings in this area. Studies show that air infiltration in commercial buildings has a much higher effect on energy use than commonly assumed. The UK has an air infiltration requirement in their building code. See this web site for a good set of links on the issue - http://www.infiltec.com/inf-larg.htm The 90.1 committee has a task force working on this issue but it has proven to be quite complex. It seems too much in your situation because it probably is.