The Plasma Air 600 Series Model 603 brushneedlepoint ionizers are rated for 2400 CFM and produce positive and negativeions neutralizing harmful pathogens, pollutants and odors. This self-balancingionizer is typically installed at the fan inlet of fan coil units, VRFcassettes, ductless splits, WSHP etc. These ionizers are self-contained in apotted ABS box with a molded flange and mounting holes and is protected with aninline 500mA glass cartridge fuse. The 600 series is UL2998 validated for zeroozone emissions.