"The solutions are as wide ranging as the problems. So are the prices. We have summarized some solutions and their price ranges in the table below. Unfiltered Surge Fuses are very inexpensive, and may provide damage protection from lightning strikes or other surges, but they do not filter out adverse noise. Filtered Surge Suppressors are inexpensive solutions to noise suppression and surge protection. The better units inhibit surges above 5000 volts, 200 amps. They should also provide noise filtration of 10dB or more to cover average power disturbances. Computer Regulators or Line Voltage Conditioners protect equipment from both noise and voltage fluctuations. They are an inexpensive solution, available in both portable or hardwired models. They provide ideal protection in high noise areas where voltage fluctuations exceed the regulating range of the computers power supply. Super Isolation Transformers provide inexpensive protection against frequency variation or noise related disturbances. This is adequate where voltage fluctuations are not a serious problem. Most high-end computers have built-in voltage regulation, but still require protection from line noise. Table attached as separate file with name ""What are some of the solutions to Dirty Power?"" should be included at the bottom of this FAQ"