The purpose of this project is to improve the calibration process of the sensors located on the PCB boards while maintaining accuracy and safety. The gas monitor calibration chambers that are made by Belimo are currently used in various locations such as boiler rooms, loading docks, indoor parking, chiller rooms, warehouses, etc. The chambers effectively detect 𝐶𝑂 and NO2 gases by having a PCB that holds several sensors. The sensors require calibration within a medium-sized, square-shaped chamber that can accommodate up to eight PCB boards. A crucial safety requirement is ensuring the enclosure is airtight, as any gas leaks could pose significant hazards. The entire process is controlled by the control panel that is open to customization and the chamber is mounted on the table at atmospheric pressure and room temperature conditions. Belimo desires to make the calibration process more efficient by minimizing the time required and increasing the chamber’s capacity to hold a larger number of PCB boards. They also are in need to create a robust base structure to hold all the necessary components and provide easy access for the operator to work in the chamber. Nonetheless, a key aspect of the project is ensuring the selected materials meet the required size specifications and are compatible with the gases used in the process. The chamber needs to encapsulate the air tightly, ensuring even airflow and the capacity to hold a substantial number of PCB boards without compromising accuracy.