This subway station special edition fire prevention wet towel is made of high-density pure cotton, specifically designed for underground public transportation environments. Light yellow/white material, vacuum-sealed aluminum foil packaging, with excellent smoke filtration and toxic gas absorption capabilities, filtering efficiency up to 98%. Urban rail transit safety data shows that 90% of casualties in underground space fires are caused by toxic smoke. Available in three specifications: Station Staff Version (150g/4-year shelf life/blue packaging), Passenger Standard Version (110g/2-year shelf life/beige packaging) and Emergency Basic Version (70g/2-year shelf life/gray packaging), suitable for subway stations, tunnels, and other underground public spaces. The product meets urban rail transit safety equipment standards, has won multiple safety innovation awards, and is a key component of subway emergency systems.