Features: All Metal Box - ATOMSTACK B1 laser engraving and cutting machine protective box dust cover, metal structure, stable and firm, fireproof and dustproof. Protective Acrylic Window - Above the protective box is an acrylic window design, which can filter laser light to protect eyes. Smoke Filter And Purification System - The shell of the box is equipped with an air inlet and a ventilation fan. A ventilation pipe is connected to the outside. The other end of the ventilation pipe is connected to a filter system, which can effectively exhaust and purify the smoke generated during the engraving process. Detachable Design - The bottom of the protective box is equipped with a movable bottom plate, which can be removed if necessary, and a roller can be placed to meet your needs for engraving cylinders in the protective box. In addition, it is convenient for you to clean up the waste generated after engraving or cutting. Strong Compatibility - Adapted to all types of ATOMSTACK engraving machines, as well as 95% of other engraving machines on the market. Specification: Model: B1 Material: Stainless Steel Plate + Acrylic Plate Product size: 736 x 651 x 358mm Package Size: 73 x 45 x 31cm/28.7 x 17.7 x 12.2in Package Weight: 17.5kg/38.5lb Packing List: 1 x Protective Box Kit