Firefighters and other emergency units can face significant risks from hazardous gases during crisis situations, necessitating advanced tools to ensure their safety. This research focuses on designing and developing a wearable device capable of real-time monitoring of dangerous gas concentrations in the environment. The device combines ergonomic design and advanced gas sensors to give firefighters real-time alerts. By combining lightweight construction with robust functionality, the system aims to minimize potential threat of hazardous substances inhalation. Key features include multi-gas detection, continuous monitoring, and compatibility with existing personal protective equipment. The goal is to enhance firefighter safety by equipping them with a versatile and effective tool for managing gas-related hazards during crises.