We add a sponge pad for filtering. (Includes clear installation instruction manual) Compatible with most engraving machines on the market, such as fiber/co2/k40 laser engraver, as long as the size is within this range. Vent Covers Enclosure With Vent, Fireproof Laser Cutter Protective Cover Smoke Odor Insulation Noise Reduction Eye Protection Suitable For Most Laser Engraving Machine 700x700x460mm Laser Engraver The laser engraver cover can be easily folded when not in use to help you save space. Extra large space for laser engraving machine protection cover (700*700*460mm/27.5*27.5*18in).Higher than other laser enclosure, can be used for laser rotary... Dustproof It can also be used as a dust cover to prevent the engraving machine from being covered with dust and to facilitate storage. 【Large Size & Wide Applicability】Extra large space for laser engraving machine protection cover (700*700*460mm/27.5*27.5*18in). Higher than other laser enclosure, can be used for laser rotary roller engraving taller objects. In addition, it also serves as a dust cover to protect the laser engraver. Please watch the video, we tested with fire for a few minutes without any problem. 【Easy to Install and Store】Easy to carry and assemble, no need for any other tools, and can be installed in minutes. Zipper Design You can change the laser engraving material or adjust the laser module settings by quickly unzipping the zipper without moving the laser shield. Pergear Laser Engraver Enclosure with Vent, Fireproof and 4-Piece 3/8 in. Wobble Extension Set includes 3 in., 6 in., 10 in., & 12 in. Wobble Extensions packaged in a tray. Warranty returns may need to be processed by the manufacturer. View the manufacturer’s warranty policy for more details. Please be the first user to review this product For cleaning, simply wipe with a damp cloth. Stainless steel structure bracket, more stable overall. 【Noise Reduction, Smoke & Odor Insulation】Laser enclosure isolates 99% of dust particles, fumes, odors, and noise during cutting and engraving. Eyes Protection The protective part of laser engraver cover glasses is made of double-layer pvc material, which can reduce the blue light produced by laser engraving and protect your eyes.