As the demand for antimicrobial products increases,AK Steel(Middletown, OH) has introduced antimicrobial-coated steel. The company’s flat rolled stainless and carbon steels coated with the AgION antimicrobial compound suppress the growth of a broad array of destructive microbes including bacteria, molds and fungi. The company says the steel’s properties are particularly well suited for uses in the hvac industry, such as addressing air-handling systems, including ductwork, fans, drip pans and diffusers.