Did that headline get your attention?*
It should have. This is just a reminder that 3-D printers are industrial tools and like laser cutters, proper protective gear and ventilation is needed.
"According to a paper published in the journal Atmospheric Environment, the desktop 3D printers on the market can emit a pretty hefty amount of harmful ultrafine particles (UFPs) into the air."
"Worst case scenario? Asthma-like symptoms, cardiac arrest, stroke, and even death. There’s also the issue of toxicity in the materials used to 3D print that could compound these effects."
*There are a bunch of journalistic tricks used here to get attention and scare. But don't run off in a panic. Just give this some thought and do the responsible thing for your situation.