3Doodler plastics have been tested for heavy metals, and have undergone full toxicological risk assessments, passing each and every test. Some users notice a slight "plasticy" smell when using ABS. Many users prefer the smell of PLA, which, being corn based, can smell like popcorn. No matter what material you're using, and whether you're using a 3Doodler or a traditional 3D printer, we recommend working in a ventilated area.
The 3Doodler Start Eco-Plastics are 100% eco-friendly and non-toxic, and so there are absolutely no fumes.
To ensure you are using the right plastics for your 3Doodler, please feel free to check out our compatibility chart here: www.the3doodler.com/compatibility