Atomstack B1 Laser Engraving Cutting Machine Protective Box All Metal Structure Acrylic Window Filter Protect Eyes Smoke Filter System Detachable Design Upgrade Assessary Accessary Compatible with S10 PRO/S20 PRO/ X20 PRO/A20 PRO/A5 10W/A5 20W/A5 30W/A5 M40/A5 M30/A5 PRO/A5 PRO+/P7 M30/P7 M40/P7 M50