A system for spacecraft atmosphere CO.sub.2 capture that has a first heat exchanger configured to receive airflow from the spacecraft atmosphere and to cool the airflow via a first heat exchange with CO.sub.2-depleted air. The system further has a pre-cooler configured to receive and cool the airflow from the first heat exchanger, and has a second heat exchanger configured to receive the airflow from the pre-cooler. The second heat exchanger can cool the airflow via a second heat exchange with the CO.sub.2-depleted air. Deposition coolers can operate in a deposition mode in which CO.sub.2 from the airflow is deposited to generate said CO.sub.2-depleted air, and a sublimation mode in which deposited CO.sub.2 is sublimated into CO.sub.2 gas. A controller is configured to alternately cycle each of the first and second deposition coolers between the deposition mode and the sublimation mode.

A filter includes a filter outer wall, and a filter inner wall spaced apart from the filter outer wall. The filter inner wall and the filter outer wall define a filter void therebetween, and the filter inner wall and the filter outer wall extend along a filter axis. A volume of filtration material is positioned in the filter void, and a plurality of baffles extend between the filter inner wall and the filter outer wall. The plurality of baffles are configured to induce a helical component to an airflow entering the filter void at a first void end relative to the filter axis and exiting the filter void at a second void end opposite the first void end.

A living atmosphere control system is provided with a primary living area, a green cell containing plants consisting of Boston fern, aloe vera, areca palm, peace lily, and garden mums, at least one inlet configured for transporting oxygen from said green cell into said living area, and at least one outlet configured to transport carbon dioxide from said living area to said dehumidifying coils.

An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first rotating porous bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.

An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first rotating porous bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.

An environmental control system includes an air conditioning subsystem and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator, a second gas-liquid contactor-separator, and a third gas-liquid contactor-separator. One of the first, the second, and the third gas-liquid contactor-separators is configured to receive used absorbent liquid having at least a first contaminant and discharge at least a first contaminant for recovery and reuse. Another of the first, the second and the third gas-liquid contactor-separators is configured to receive used absorbent liquid having at least a second contaminant and discharge at least the second contaminant for recovery and reuse.

An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first rotating porous bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.

An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first rotating porous bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.

A cartridge mounting an air treatment material has a housing. The air treatment material is received within the housing, and spaced from inner walls of the housing by a plurality of resilient sheets. The air treatment material is hydroxide sheets. There is an inlet direction into the housing for air flowing across the air treatment material and an outlet opening on an opposed end of the housing. There are top and bottom surfaces and side surfaces forming a perimeter about the air treatment material. The resilient sheets extend substantially continuously across the side surfaces and the top and bottom surfaces at least at the inlet end to increase airflow across the air treatment material. An enclosed inhabited space is also disclosed and claimed.

A cartridge mounting an air treatment material has a housing. The air treatment material is received within the housing, and spaced from inner walls of the housing by a plurality of resilient sheets. The air treatment material is hydroxide sheets. There is an inlet direction into the housing for air flowing across the air treatment material and an outlet opening on an opposed end of the housing. There are top and bottom surfaces and side surfaces forming a perimeter about the air treatment material. The resilient sheets extend substantially continuously across the side surfaces and the top and bottom surfaces at least at the inlet end to increase airflow across the air treatment material. An enclosed inhabited space is also disclosed and claimed.