Folks, I want to cut a 2d part out of 3mm Carbon firber sheet for the dash of my car.
I have read before that carbon fiber "is bad stuff". I have cut MDF in the past wish is considered also "bad Stuff" with a vacumm attachedment and a homemade dush shoe with not problem. There was no cloud of dush anywhere. I do have an Oneida Cyclone.

I was reading the some people prefer to cut Carbon fiber under water to keep the dust in the water. Is this absolutely necessary?
What are some precautions and things I need to be aware about before cutting a part in carbon.

Thank you.