Innovative laser cutters can deal with almost any material. But, you should not use your laser cutting machine to cut artificial leather, carbon fibers, PVC, PVB, Teflon, chlorine, and bromine. Moreover, you have to be careful while dealing with lead, copper, nickel, manganese, chromium, and cobalt.
When you cut and engrave these materials using laser technology, gases and dust will be produced. Thus, they can affect the laser cutting machine's functionality.