A photocatalytic device includes a housing with inlet and outlet openings. Hydrated multi-metallic catalyst substrate(s) disposed within the housing support a hydroxyl radical reaction with water vapor and ultraviolet light from a source in the housing, resulting in hydro peroxides and hydroxyl ions. At least one ion generator disposed in the housing provides ions. A fan disposed within the housing causes air to enter the inlet opening, circulate through the catalyst substrate(s), and exit the outlet opening, carrying the ions. A power converter disposed in the housing is operatively coupled to a power connector adapted to accept a plurality of plugs or cords. Each plug or cord is configured to plug into a corresponding conventional outlet to supply a corresponding conventional alternating current voltage at conventional cycles to the power converter for powering the ultraviolet light source, ion generator(s) and fan.
