The Koch OdorKleen ES is MERV 8 extended surface pleated panel which offers a unique combination of particulate filtration and odor removal in a totally disposable unit. The filter media utilized in OdorKleen ES panels is a dual purpose multi-layer product, designed to collect airborne particulate and remove odors and other gasses from the air stream. 100% mechanical media provides high efficiency, excellent dust holding capacity throughout the filter’s lifecycle with a MERV 8 performance rating before and after conditioning steps when tested in accordance to ASHRAE Test Standard 52.2-2007. The upstream layer provides an efficiency rating of 70% for 3 to 10 micrometers. The downstream odor removal layer is impregnated with carbon media for absorption of volatile organic compounds (VOC’s) from the air stream. This carbon media carries a minimum activation of 60%, insuring high odor absorption efficie.