Credits IEQp1 IEQc2 IEQc2 IEQp1 SSc3.2 IEQc2 IEQc2 IEQp1 IEQc2 IEQc2 IEQp1 IEQc2 IEQc2 IEQp1 IEQc2 IEQc2 IEQp1 IEQc2 IEQc2 IEQp1 IEQc2 IEQc2 IEQp1 IEQc2 IEQc2 EQc2 EQp1 Public domain software from NIST (National Institute of Standards and Technology) that has natural ventilation sizing tools, and flow models to analytically predict room-by-room airflows. Resource type Software Tools Link http://www.bfrl.nist.gov/IAQanalysis/