A gas mask is a crucial piece of protective equipment designed to shield the wearer from harmful gases, particles, or vapors, safeguarding their respiratory system. Comprised of efficient filters, a well-sealed facepiece, and an adjustable system, gas masks ensure reliable protection in various environments. They find application across industries, healthcare, and emergency situations, providing individuals with safe breathing space. Gas masks come in various types, including half-face masks, full-face masks, and supplied-air respirators, each serving specific purposes and suitable for different scenarios. Choosing the right gas mask is paramount in safeguarding against hazardous substances, thus understanding the mask types, filtration capabilities, and proper usage techniques is essential.