Air Assist Pump Cut Faster & - The large and steady airflow of 30L/Min blows away the smoke and debris generated by the laser engraver's work, helping the engraver to cut faster and , improving laser efficiency and saving your time.Clean & Smooth Edge - The air assist device uses air to quickly reduce the temperature of the cutting material to prevent deformation and discoloration caused by high temperature, ensuring smooth lines, complete patterns and clean material surfaces.Laser Module Protection - The high velocity airflow blows smoke and particles downward and prevents them from flowing upward into the laser module, protecting the laser lens and thus extending the life of the laser module. Cut Faster & - The large and steady airflow of 30L/Min blows away the smoke and debris generated by the laser engraver's work, helping the engraver to cut faster and , improving laser efficiency and saving your time. Clean & Smooth Edge - The air assist device uses air to quickly reduce the temperature of the cutting material to prevent deformation and discoloration caused by high temperature, ensuring smooth lines, complete patterns and clean material surfaces. Laser Module Protection - The high velocity airflow blows smoke and particles downward and prevents them from flowing upward into the laser module, protecting the laser lens and thus extending the life of the laser module. Colour:Black & Silver Material:Plastic Package Contents: 1 * laser air assist pump 1 * trachea 1 * shunt