Features: High Performance: ACMER-C4 laser engraving machine accessory Features an air-assist system with a 30L/min airflow, design with a knob to adjust the airflow from 0-30L/min, which providing exceptional performance for your engraving needs. Low Noise: This air-assist system operates with low noise, ensuring a quiet and comfortable working environment. Long Lifespan: With a durable design, this air-assist system has a long lifespan, making it a reliable and cost-effective choice for your laser engraving machine. Wide Compatibility: Suitable for ACMER P1 and P2 laser engraver. Compatible with 95% of laser engraving machines on the market, including TEVOUP, XTOOL, ATOMSTACK, NEJE, Ortur, SCULPFUN, Twotrees, and more. Easy to Install: This air-assist system is easy to install and use, available to connect air hose with an inner diameter of 4mm, making it a convenient and practical addition to your laser engraving machine. Specification: Model: ACMER-C4 Body size: 145x135x70mm Voltage: 110V/220V Power: 36W Noise: 40dB Airflow: 30L/MIN Maximum atmospheric pressure: 0.03Mpa Outer diameter of the air outlet: 4mm (air hose with an inner diameter of 4mm can be connected) Package Size: 26x26x17cm/10.2x10.2x6.6in Package Weight: 2210g/4.8lb Packing List: 1 x Air-Assisted Accessories 1 x PU Tube 1 x Control Value 1 x U Plate 1 x Gas Nozzle Stents 4 x Scew