Longer Cut Engraver Air Assist Kit with Air Pump Upgrade Switch Button for Ray5 10W/20W Laser Engravers Longer Cut Engraver Air Assist Kit with Air Pump, Upgrade Switch Button, for Ray5 10W/20W Laser Engravers Large Airflow: Longer laser engraver accessories equipped with adjustable airflow of 10-30L/min, can effectively suppress the smoke and dust generated during laser cutter. Prevent smoke and dust from attenuating laser energy. Edge Cleaner and Smoother: Longer air assist pump powerful airflow can quickly reduce the surface temperature of cutting objects, prevent excessive burning, and make the cutting edge cleaner and smoother. Low Noise Operation: Only 60dB of noise is generated during the working process, which is similar to the volume of household electric fans when working. Longer laser air assist offers you a quiet environment for laser engraving and cutting (Recommend cutting thickness of 3-6mm). Plug and Play: Easy to install and use, no need to buy additional laser engraver accessories. Just follow two steps to install the laser air assist. 2m tube with the flexible movement of a Longer laser engraver ensures precise cutting and engraving.