The "dryer " the layup is, the lighter the plate is (less epoxy ( plastic)). Also more fragile.
"carbon fiber" is carbon fiber reinforced plastic. Just like fiberglass except the fiber is carbon. Bikes, airplanes, etc are generally a fabric- a weave just like a shirt or a bedsheet. There are layers at different angles depending on where the strength is needed.
The there's one-directional sheets: lighter but more fragile, and better obviously with more straightforward loads.
Then there's injected carbon: more like a bucket of short fibers mixed with the plastic and sprayed into a mold. cheaper and easier. your materials can be waste from another manufacturer. Cheap bike frames are made this way (Trek)
Any cutting or sanding or drilling creates dust. very small and light dust that would go right through an N95 mask. super nasty. Gotta wear the right stuff.
Dust and vapors are what often causes non-smokers to get lung cancers. There's so much nasty crap out there. The dirt that comes off your car and dries on your garage floor has magnesium chloride in it, treated wood has chemicals that kill bacteria, plywood has glues, OSB plywood has formaldehydes.... on and on. (by the way, all that weed you're smoking and vaping... A M F. )
Anyway, asbestos just sitting there doesn't hurt you. carbon plates encased in foam doesn't hurt you. Fluorinated ski wax sitting on a bench doesn't hurt you. If you overheat it when you're waxing, or brush it after it dries- that's what hurts you.
Again, this is why we don't do a lot of manufacturing in the US. We have regulations that protect both our workers and the public that drinks the water downstream from the factory. We also don't let 12 year olds work 14 hour shifts.