Feature: 1. AIRFLOW ADJUSTMENT: With adjustable airflow range of 10‑30L/min and can be adjusted by rotating the knob, meet daily cutting projects, effectively suppress smoke and dust generated during laser cutting, improve laser efficiency and save time. 2. 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 DI D1 PRO, for Master2 S2‑SF, for Reizer 20W, for LE400PRO L5 LE‑1, and other laser engraving machines. 3. HIGH EFFICIENCY: This air assist pump utilizes air to quickly reduce the temperature of the cutting material surfaces, preventing deformation and discoloration due to high temperature, ensuring smooth lines, complete patterns, and clean surfaces. 4. LASER LENS PROTECTION: This air assist kit can blow away debris and smoke generated during the working of the laser head, protect the lens of the laser head from pollution, greatly improve the lifespan of the laser head and the cutting efficiency of the engraver. 5. LOW NOISE DESIGN: The amplitude of air assisted vibration is very small, with a low noise design of ≤ 55dB, which will not affect the focusing of the laser, as well as the integrity and continuity of the engraving machine operation. Specification: Item Type: Air Assist Pump Material: ASB 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