A project is considering using electrostatic filters in lieu of media-based filters (typically measured in MERV). Due to the nature of this technology, these electrostatic filters are measured using Clean Air Delivery Rate (CADR), which is recognized by the FTC and EPA as a fair and objective measure of air cleaner technologies. Has anyone successfully used CADR as a way to measure effectiveness of an air filtration system as an alternative approach to meet the intent of this credit? If so, what CADR rating would demonstrate equivalent filtration effectiveness to MERV-13?