We came across an article pointing out some possible heath risks associated with 3-D printing. Read up and be careful when you print.
From the article: "What they found was that the level of harmful particles and fumes depended mostly on the filament material, not the maker of the printer. For example, ABS emitted styrene, a type of chemical that's toxic and carcinogenic. Other materials based on nylon emitted caprolactam, a chemical linked to a laundry list of health problems. Meanwhile, the PLA filament emitted lactide, which is actually pretty benign. All told, the levels of ultrafine particles reached concentrations 10 times as high as a normal office or lab."
Here is the [Full Article @ Fast Company].
Here is a link to the study referenced in the article: http://pubs.acs.org/doi/full/10.1021/acs.est.5b04983
Image courtesy of: http://fc05.deviantart.net/fs70/i/2013/187/d/3/vancouver_hackspace_3d_printer_demo_by_nyxchaotica-d6c8evc.jpg