Energy efficient paint booth

A method of conditioning the air supplied to a paint application booth having a separate air supply from a paint application building housing the paint application booth includes determining a booth psychometric condition preferred to apply paint inside the paint application booth. Air is removed from the paint application building and conditioned obtaining the preferred booth psychometric condition of the air removed while maintaining a generally constant enthalpy. The air removed from the paint application building is transferred into the paint booth at the booth psychometric condition preferred to apply paint inside the paint application booth.