1. AIR OUTLET TEMPERATURE THERMOMETER: Equipped with a manual knob for precise temperature control, this welding air cooling vest maintains an outlet temperature of ±1℉ (±0.6℃) under normal conditions. Utilizing only filtered compressed air, it requires no electricity, freon, or chemical refrigerants, making it an efficient cooling solution for industrial applications. 2. USER-FRIENDLY DESIGN: This cooling vest is designed for ease of use. With a simple on/off mechanism, it provides immediate cooling without generating waste. Ideal for individuals looking to prevent overheating, it represents one of the most effective and economical ways to lower body temperature. 3. NO COMPONENTS REQUIRED: The vest is free of complex components or residues. Constructed from durable nylon and oxford fabric, its sleeveless design is perfect for warm environments or summer activities. It offers long-lasting comfort, adjustable temperature settings, and meets heat insulation and mixed combustibility standards. 4. VERSATILE APPLICATION: The adjustable sides and shoulder straps make this air-conditioned vest suitable for most sizes. Easy to adjust for a comfortable fit, it is perfect for high-temperature settings such as metallurgy, welding, glass production, power plants, and more. 5. USE SCENARIOS: Ideal for workers in high-heat environments like foundries or construction sites, this cooling vest helps maintain safe body temperatures. It’s also great for outdoor activities during hot weather, ensuring comfort while remaining active.