The design is using the KEYESTUDIO CCS811 carbon dioxide sensor with Lora module (REYAX RYLR896) as transmitter with Arduino board (Pro Mini) at the sense side station. At the receiving side station, we will use NodeMCU ESP8266 Wi-Fi module and Lora module (REYAX RYLR896). Blynk IoT platform will be used to connect and collate the data. The data will send periodically from the transmitted station to the receiving station. The battery at the transmitted station will be 3.7v with 3500 mAh and it can power the station for more than 2 years. Also, I do have the ability to add a 3” x 3” small solar panel to power the transmitter forever.