A very cheap and simple DIY enclosure for an engraving frame (Ortur LM2) - EnduranceLasers
Amazon.com: Laser Engraver Enclosure with Vent, Fireproof and Dustproof Protective Cover for Most Laser Engraving Machine, Insulates Against Smoke and Odor, Noise Reduction, Eye Protection, 700x700x460mm : Tools & Home Improvement
A Home Made Laser Cutter For $700 | Hackaday
DIY Laser Engraver Design, Build, and Control - A2D Electronics