I’m not sure if these are good quality or not… they were the right price for amount for what I wanted to do (a few for school and enough to mess up). This is what I used. I have light pink coming for my daughter, they just didn’t get here yet.
I wasn’t standing directly over the machine, was standing at the table in the middle of the room, so I didn’t really notice much. I have it in my basement craft area and had the french door open on one side of the room while it was vented out the back. I smelled more char on my hands from things I was cutting earlier than the silicone.