I've heard several times from people on this forum and other places that SLS printers won't ever be in homes because they pose major safety concerns. Can someone go into detail as to what these concerns are? Are there fumes? Are there fire hazards? What exactly is the problem with SLS printers? They are used in manufacturing facilities, and I've seen them being used at trade shows. I'd think that if they were so dangerous, they would have them in use around thousands of people at trade shows.