system of the present invention provides particulate filtration similar to filtration results when using an air filter in one embodiment an additive is added to system 10 additives include but are not limited to materials such as aromatic antimicrobial anti fungal anti mole anti spore or combinations thereof one embodiment adds the additive to at least one water chamber the additive can be a solid semi solid or liquid one embodiment provides an additive as a solid in which the additive is released over an extended period of time being 1 90 days in one embodiment addition of anti mold materials is a step in a method to clean mold from duct work providing a an article system of the present invention adding a mold killing or remediation component to the water chamber of the article running the air conditioner such that the mold killing component is carried through the system into the existing air handler wherein the method is carried out for 1 90 days until mold is killed and no longer in the ductwork this method can be used to sterilize and deodorize air ducts the method is not limited to distribution of a single additive and can be used with a plurality of additives the present invention has an additional feature in that there is no need to clean or change the water in any water chamber particulate in the inlet air 70 is directed into water in a water chamber air pressure from the system circulates water in all water chambers such that particulate is not able to settle or.