A heating, ventilating, and air conditioning system, for regulating a moisture content of conditioned air, the system comprising: a closed-conduit refrigeration circuit for developing cooling capacity in an evaporator, the closed-circuit refrigeration circuit comprising a refrigerant expansion valve and a suction line; a closed-conduit desiccant circuit for removing at least some moisture from a cooled airflow cooled by the evaporator, the closed-conduit desiccant circuit having an absorber (156, 200), the absorber (156, 200) comprising: an absorber frame (158, 202) formed with a first substantially-closed perimeter, a pair of absorber membranes coupled to the absorber frame (158, 202) along the first substantially-closed perimeter, the pair of absorber membranes defining opposite surfaces of an absorber processing volume (160, 206), the pair of absorber membranes formed of a material permeable to vapor and resistant to liquids, and wherein the absorber frame (158, 202) has a first desiccant entry port and a first desiccant exit port configured to allow liquid desiccant to, respectively, enter and exit the absorber processing volume (160, 206); an air-handling sub-system (106, 112, 140) for moving air across a portion of the closed-conduit refrigeration circuit to produce the cooled air flow and across a portion of the closed-conduit desiccant circuit; and wherein a portion of the closed-conduit refrigeration circuit enters the absorber processing volume (160, 206) for cooling desiccant therein. a closed-conduit refrigeration circuit for developing cooling capacity in an evaporator, the closed-circuit refrigeration circuit comprising a refrigerant expansion valve and a suction line; a closed-conduit desiccant circuit for removing at least some moisture from a cooled airflow cooled by the evaporator, the closed-conduit desiccant circuit having an absorber (156, 200), the absorber (156, 200) comprising: an absorber frame (158, 202) formed with a first substantially-closed perimeter, a pair of absorber membranes coupled to the absorber frame (158, 202) along the first substantially-closed perimeter, the pair of absorber membranes defining opposite surfaces of an absorber processing volume (160, 206), the pair of absorber membranes formed of a material permeable to vapor and resistant to liquids, and wherein the absorber frame (158, 202) has a first desiccant entry port and a first desiccant exit port configured to allow liquid desiccant to, respectively, enter and exit the absorber processing volume (160, 206); an air-handling sub-system (106, 112, 140) for moving air across a portion of the closed-conduit refrigeration circuit to produce the cooled air flow and across a portion of the closed-conduit desiccant circuit; and wherein a portion of the closed-conduit refrigeration circuit enters the absorber processing volume (160, 206) for cooling desiccant therein. an absorber frame (158, 202) formed with a first substantially-closed perimeter, a pair of absorber membranes coupled to the absorber frame (158, 202) along the first substantially-closed perimeter, the pair of absorber membranes defining opposite surfaces of an absorber processing volume (160, 206), the pair of absorber membranes formed of a material permeable to vapor and resistant to liquids, and wherein the absorber frame (158, 202) has a first desiccant entry port and a first desiccant exit port configured to allow liquid desiccant to, respectively, enter and exit the absorber processing volume (160, 206); an air-handling sub-system (106, 112, 140) for moving air across a portion of the closed-conduit refrigeration circuit to produce the cooled air flow and across a portion of the closed-conduit desiccant circuit; and wherein a portion of the closed-conduit refrigeration circuit enters the absorber processing volume (160, 206) for cooling desiccant therein.