An active modulation system for CO2 concentration and flow conditions is provided, the system comprises: at least one air inlet port disposed in a house connects to an air conditioner, the air conditioner supplies cold air into the house through the air inlet and at least one sucking port disposed in the house in which CO2 stagnates, connects to a suction equipment to suck CO2 out of the house or to recycle back to the house according to CO2 concentration.一種主動式二氧化碳濃度調控及風場均勻化之系統,該系統包含:於一房舍設置至少一入風口,入風口連接一空調裝置,空調裝置經由入風口將冷空氣送入房舍;以及於房舍設置至少一抽吸口,抽吸口係設置於房舍之二氧化碳沉積處,抽吸口連接一抽吸裝置,抽吸裝置經由抽吸口將二氧化碳沉積處之二氧化碳抽出房舍外;依二氧化碳濃度需求,將二氧化碳回收利用或排出。10‧‧‧房舍11‧‧‧入風口12‧‧‧抽吸口121‧‧‧第一管路13‧‧‧牆面14‧‧‧地面20‧‧‧空調裝置30‧‧‧抽吸裝置40‧‧‧控制裝置50‧‧‧多層式架體60‧‧‧植物80‧‧‧導流板h1、h2‧‧‧高度θ‧‧‧夾角
