But I would be very scientifically comfortable that ANY plastic brought at or above its glass transition state is going to outgas toxic materials. And that includes PLA, ABS, HIPS, polycarbonate, PETG, PET, ASA, and more. And printing is usually quite a bit above tg. Higher temp = more nastiness.
That's why my 3d printers are in my workshop, separated from our house. And they are also enclosed printers, so I'm less worried of particulate exposure. But again, anybody starting off early in 3d printing knew this was a definite threat and a concern.
But I would be very scientifically comfortable that ANY plastic brought at or above its glass transition state is going to outgas toxic materials. And that includes PLA, ABS, HIPS, polycarbonate, PETG, PET, ASA, and more. And printing is usually quite a bit above tg. Higher temp = more nastiness.
That's why my 3d printers are in my workshop, separated from our house. And they are also enclosed printers, so I'm less worried of particulate exposure. But again, anybody starting off early in 3d printing knew this was a definite threat and a concern.