var fDesc=new Array();
fDesc[0] = "The humidity calculator offers a comprehensive selection of humidity units. High and low humidity ranges are covered. It facilitates calculations with extremely dry gases containing only parts per billion (ppb) moisture content - which is, of most relevance to sectors such as semiconductor industry. At the other end of the scale, it is capable of calculations involving very high concentrations of water vapour - such as in paper production and certain metallurgical processes.";

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