Multi-functional equipment for direct decarbonization with improved indoor air quality

A method of capturing carbon dioxide (CO2) present in air, the method comprising:

• adding a carbon-dioxide-capturing device to a heating, ventilation, and air conditioning (HVAC) system of a building;
• and
• circulating air including carbon dioxide through the carbon-dioxide-capturing device in the HVAC system;
• wherein the carbon-dioxide-capturing device is added to one or both of an air handler and air-distribution ductwork of the HVAC system;
• wherein the carbon-dioxide-capturing device is stationary.

A direct decarbonization system for capturing carbon dioxide present in air, the system comprising:

• a heating, ventilation, and air conditioning (HVAC) unit;
• air-distribution ductwork connected to the HVAC unit;
• and
• a carbon-dioxide-capturing device disposed in one or both of the HVAC unit and the air-distribution ductwork;
• wherein carbon dioxide (CO2) gas present in air passing through the HVAC unit or the air-distribution ductwork is removable from the air by the carbon-dioxide-capturing device;
• wherein the carbon-dioxide-capturing device comprises an absorbent material.

A direct decarbonization system for capturing carbon dioxide present in air, the system comprising:

• a heating, ventilation, and air conditioning (HVAC) unit;
• air-distribution ductwork connected to the HVAC unit;
• and
• a carbon-dioxide-capturing device disposed in one or both of the HVAC unit and the air-distribution ductwork;
• wherein carbon dioxide (CO2) gas present in air passing through the HVAC unit or the air-distribution ductwork is removable from the air by the carbon-dioxide-capturing device;
• wherein the carbon-dioxide-capturing device is stationary.