Abstract: Disclosed are methods, apparatuses, assemblies and systems for dehumidifying air and producing water. According to some embodiments, there may be provided a system including: (a) a desiccant reservoir to hold hydrated desiccant received through a pumped line from a functionally associated moisture-collection or dehumidification chamber, and (b) a passive desiccant return line connected to an outlet of said desiccant reservoir of said regeneration chamber and configured to provide for self-regulated desiccant flow from said desiccant reservoir of said regeneration chamber back to the moisture-collection/dehumidification chamber.

Abstract: Disclosed are methods, apparatuses, assemblies, devices and systems for removing pollutants from air within a space or an environment. Humidifiers introduce a pollutant trapping material into the air of the space or environment by evaporating the pollutant trapping material, wherein the pollutant trapping material adheres to pollutants in the air being purified. Dehumidifiers remove the pollutant trapping material, along with pollutants adhered thereto, from the air by dehumidifying it. The cooperation of the humidifier(s) and the dehumidifier(s) may be collaborated based on a combination of pollutant concentration level value(s) and relative humidity level value(s) measured in the air.