There are no “fumes” to speak of, if anything, the “fumes” some people refer to are from the IPA, not the resin.
The only thing that some folks object to are the smells of some of the resins.
Some resins have very low odor, if any, other are stronger. For example most standard resins (grey, white, black) are barely noticeable, but flexible is very strong. I’m not familiar with other resins since I don’t use them, but I’m pretty sure none of them are toxic.