(2019)?
There's been a concerning trend of people running these in bedrooms and offices with no filtration, and others thinking they can cobble together their own filter using a bag of carbon, generic hepa filter and a PC cooling fan.
I figure the more information on the volitility of the materials that can be spread the more people it will get through to that you really should not be running a 3d printer in your home at all unless its in a sealed, outdoor vented enclosure. Most people running these things dont even have a basic room air purifier.