A device for extracting water from the environment by means of a liquid desiccant, comprising: a) capture means containing liquid desiccant that captures water from the environment; b) an extraction chamber; c) a first duct through which the liquid desiccant with water flows from the capture means to the extraction chamber; d) a second duct through which the liquid desiccant flows from the extraction chamber to the capture means; along the second duct, a pump is connected in order to pump the liquid desiccant toward the capture means; e) a reservoir to store water extracted from the liquid desiccant in the extraction chamber; f) a third duct through which extracted water flows from the extraction chamber to the reservoir; g) a vacuum generator, operationally connected to the reservoir; h) a valve placed along the third duct; i) a control device operationally connected to the vacuum generator; and the pump wherein, when valve is opened, the water vapor present in the extraction chamber flows through valve and through the third duct towards the reservoir, due to the vacuum generator generating a vacuum between the extraction chamber and the reservoir, and the vacuum generator whose suction point is operationally connected to the reservoir in order to suction gas contained in the reservoir, and suction the extracted water that flows through the third duct, thereby extracting the extracted water contained in the extraction chamber; and wherein, when valve is closed, pressure and temperature increase in the third duct, thereby condensing the water present in the third duct due to the vacuum generator that generates a pressure gradient (pressure increase) between the valve and the reservoir, and the vacuum generator whose discharge point is operationally connected to the reservoir in order to deliver gas to the reservoir, thereby creating a pressure gradient (pressure increase) within the reservoir, which is transmitted by the extracted water contained in the reservoir and by the extracted water contained in the third duct into the extraction chamber, thereby increasing the temperature of the extracted water in the duct and in the extraction chamber. a) capture means containing liquid desiccant that captures water from the environment; b) an extraction chamber; c) a first duct through which the liquid desiccant with water flows from the capture means to the extraction chamber; d) a second duct through which the liquid desiccant flows from the extraction chamber to the capture means; along the second duct, a pump is connected in order to pump the liquid desiccant toward the capture means; e) a reservoir to store water extracted from the liquid desiccant in the extraction chamber; f) a third duct through which extracted water flows from the extraction chamber to the reservoir; g) a vacuum generator, operationally connected to the reservoir; h) a valve placed along the third duct; i) a control device operationally connected to the vacuum generator; and the pump wherein, when valve is opened, the water vapor present in the extraction chamber flows through valve and through the third duct towards the reservoir, due to the vacuum generator generating a vacuum between the extraction chamber and the reservoir, and the vacuum generator whose suction point is operationally connected to the reservoir in order to suction gas contained in the reservoir, and suction the extracted water that flows through the third duct, thereby extracting the extracted water contained in the extraction chamber; and