Sorption filter device

The patent employs sorbent materials with porous structures (such as activated carbon, zeolites, or molecular sieves) that can selectively adsorb water vapor and carbon dioxide molecules from the recirculated air. These porous materials provide large surface areas for adsorption, enabling effective removal of contaminants while maintaining the energy-saving recirculation mode.

The patent changes the chemical and physical parameters of the air by introducing sorbent materials that chemically or physically bind with water and carbon dioxide. The sorbents alter the composition of recirculated air by removing harmful substances, enabling the system to maintain both energy efficiency and air quality simultaneously.

The sorbent materials with porous structures selectively adsorb water vapor from the recirculated air before it can condense on window surfaces. This prevents the formation of fog on windows while maintaining the energy-efficient recirculation mode, as the porous materials trap water molecules in their internal structures.

The patent changes the humidity parameter of the recirculated air by removing water vapor through sorption. This parameter change prevents the air from reaching dew point conditions that would cause condensation and fogging on windows, while still operating in energy-saving recirculation mode.

The sorbent materials, particularly those with microporous structures like activated carbon or molecular sieves, adsorb carbon dioxide molecules from the recirculated air. The porous structure provides extensive surface area for CO2 adsorption, effectively reducing carbon dioxide concentration to safe levels while maintaining energy-efficient operation.

The patent changes the compositional parameter of the recirculated air by removing carbon dioxide through sorption processes. This reduces the CO2 concentration from potentially harmful levels to safe concentrations, enabling continuous operation in energy-saving recirculation mode without compromising occupant health.

The patent merges the air filtration function with the existing air conditioning system by integrating sorbent materials into the air handling components. The sorbents are incorporated into filter elements, evaporator cores, or separate cartridges that fit within the existing HVAC architecture, combining multiple functions (filtration, dehumidification, CO2 removal) into unified components rather than adding separate complex systems.

The sorbent materials perform multiple functions simultaneously: they adsorb water vapor for dehumidification, capture carbon dioxide for air quality improvement, and can also trap other volatile organic compounds. This multi-functionality allows a single integrated component to address multiple air quality issues without proportionally increasing device complexity.