Various electromagnetically-countered systems are provided and include at least one wave source irradiating harmful electromagnetic waves and at least one counter unit emitting counter electromagnetic waves for countering the harmful waves. Various generic counter units of such systems and various mechanisms are provided to counter the harmful waves by the counter units by matching configurations of the counter units with those of the wave sources, matching shapes of such counter waves with shapes of the harmful waves, etc. Various methods are provided for countering the harmful waves with the counter waves by such source or wave matching. Various methods are also provided for the counter units as well as counter waves. Various processes are provided for providing such systems and counter units. Various electric and/or magnetic shields may be used alone or in conjunction with such counter units to minimize irradiation of the harmful waves from the system.