6. CRT Glass

The Cathode Ray Tube (CRT), main component in CRT monitors and CRT TV sets, is a vacuum tube containing an electron gun (a source of electrons) and a fluorescent screen used to create images in the form of light emitted from the fluorescent screen. CRTs consist of different parts containing a large amount of hazardous substances such as lead and barium oxide and therefore must be treated carefully in an adequate plant to avoid personal injury.