Feature: 1. Adjustable Airflow: With 10‑30L/min adjustable airflow, effectively suppressing smoke and dust generated during laser cutting, helping to cut faster and deeper, improving efficiency, simply rotate the knob to adjust the airflow. 2. Good Compatibility: APPLICABLE MODELS: This air assist pump is suitable for Two Trees Totems TTS TS2, for A5 pro S9 S6 Pro, for Master2 Pro S2‑SF, for XTOOL DI D1 PRO, for Master2 S2‑SF, for Reizer 20W, for LE400PRO L5 LE‑1, and other laser engraving machines. 3. Working Principle: This assist pump utilizes air to quickly reduce the temperature of the cut material surfaces, preventing deformation and discoloration due to high temperature, ensuring smooth lines, complete patterns, and clean surfaces. 4. Lens Protection: This air assist accessory can blow away acceptable debris and smoke generated during the operation of the laser head, protect the lens of the laser head from pollution, and extend the lifespan of the laser head. 5. Low Noise Design: The air assisted pump adopts ≤55dB low noise design, with small vibration amplitude and good noise reduction effect, which will not affect the focus, integrity, and continuity of the laser operation. Specification: Item Type: Air Assist Pump Material: ASB Voltage: EU Plug AC220V 50HZ Current ±15%: 1067mA Power ±15%: 15W Maximum Flow Rate: ≥30L/min Pressure: ≥30kPa Noise: ≤55dB. Package List: 1 x Air Assist Pump1 x Hose1 x Laser Fixer1 x Laser Cover1 x Hose Connection Tube1 x Hose Air Pump Connector1 x Laser Hose Connection Fixer4 x Top Thread Screws4 x M4x6 Cup Head Screws4 x M4x10 Cup Head Screws1 x M1.5 Hex Wrench1 x M2.0 Hex Wrench1 x M2.5 Hex Wrench