Nicolas Ventura, a critical facilities engineer at NERSC, discusses the implementation of Psychart, a tool for integrating psychrometric charts with Grafana to monitor the health of high-performance computing (HPC) systems by visualizing air conditions. NERSC, operated by Lawrence Berkeley National Laboratory, uses this tool to ensure optimal conditions for its HPC systems by tracking temperature, humidity, and flow rates through sensors. Psychart, developed using Grafana and Psychrolib, allows engineers to visualize critical environmental data, helping maintain system efficiency and prolong equipment life by adhering to ASHRAE guidelines. This tool, which gained traction after being published in May 2022 and featured in various showcases, enables operators to quickly assess air states and make necessary adjustments, enhancing the facility's operational efficiency. Additionally, Psychart's flexibility allows it to be applied beyond data centers to other fields such as chemical processing and atmospheric monitoring, with its open-source nature contributing to its widespread adoption.