If your laser engraver is not equipped with air assist, then when you finish engraving, you may find that the edges of the pattern look like burnt color. Air Assist for Laser Engraver This air assist is used with the D1 D1 Pro laser engraver, the 35LMin airflow blows away the smoke and debris, which can produce more perfect works and improve the efficiency of the laser engraver and save working time Laser Air Assist The airflow of the air assist will blow the smoke and powder downwards to prevent them from flowing upwards into the laser port, and protecting the laser lens and extending the working life of the laser engraver machine Low Noise and Strong AirflowIt has 4 rubber feet to reduce noise and vibration during operation, but also to prevent vibration caused by inaccurate cutting positioning, to ensure the accuracy and refinement of cutting High QualityThe high quality air assist keeps the airflow from decaying and maintains a stable and large airflow output even after long working hours Easy to UseIt is easy to install and does not require a lot of space to place it. It is small in size, but it is a good helper for the cutting machine