While the 3D printing industry as a whole has taken steps to make consumer-grade 3D printers safer for everyone using them, some health experts still express concern. For example, the Centers for Disease Control and Prevention’s website says, “3D printing hazards vary depending on the type of printer and materials used.” It also points out that some methods used in 3D printing can cause you to breathe in harmful materials: “3D printing can release particulates and other harmful chemicals into the air.” Some materials can also be harmful if they come into contact with the skin, such as "metal powders, solvents, and other chemicals.” And some materials can also be flammable or combustible. For more, see the CDC’s “3D Printing Safety at Work” webpage.