The paper presents some aspects regarding construction and the working process of a mechanic humidifier with curbed pipes, a calculus regarding water consumption as function of seed flow for arriving from the storage moisture to the primary milling stage humidity. Based on connection between this parameters it was graphically represented the variation of water flow for seeds wetting at different initial moisture contents of seeds with the purpose to arrive at a final moisture content of 15.5%, respectively 16.5%. Aspects presented in this paper are useful for designers and manufactures of seeds humidifiers but especially for users of such equipments.