Set of 6 Replacement Carbon Filters for MARK-20
The activated carbon filter in your MARK-20 should be changed every two months. It removes odors and VOC's by adsorbing the odor molecules into the filter. Since the activated carbon can only adsorb a certain amount of molecules, it's recommended to change the filter every 2 months. If not properly maintained, the carbon filter will stop working after it's full.
Includes 6 carbon filters. Carbon filter should be changed every 2 months.