| 摘要 |
The invention is related to a method for preventing the formation of ice and/or white frost in an air filter (2) of a compressor (1) and, possibly, on other surfaces when cold air is conducted through the said filter to the compressor with the intention of increasing the capacity of the compressor, comprising the exertion of radiation (4) on the air to be filtered and/or on the surface of the filter to prevent the formation of ice and/or white frost, the radiation not essentially increasing the temperature of the air conducted to the compressor
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