Panasonic ER-F is an ionizer with a 120 mm 4.724 in fan diameter that has a class leading compact size for reducing workbench clutter and increasing effi ciency. Low-volume fan type with a suppressed fan speed of approx. half is available for charge removal in processes which involve handling of small parts or thin films. Just simply replace the louver to change configuration between long distance and wide area ionization. The two louvers come with the ionizer main body. Additionally equipped with discharge needle fouling detection function. When discharge becomes weak due to needle fouling, the DSC indicator will flash for notification. Because the discharge needle unit is attached to the louver, exchange or maintenance of the needles is made easy without touching the main unit. A safe design where once the louver is removed, the high voltage circuit and the fan will halt.