1.Bipolar purification pipe filtration system, making the inlet and outlet air source pure and dry.2. Stainless steel gas storage tank, passivated stainless steel pipeline with electrolytic polishing and ultrasonic cleaning3. Built-in low pressure oil free low noise air compressor, make your laboratory work more quiet and comfortable4.Low pressure solenoid valve for equipment continuous uninterrupted work, suitable for online unmanned environment