Carbon dioxide (CO2) lasers are a type of gas laser that use carbon dioxide as the primary medium for producing laser light. They emit infrared radiation, typically at a wavelength of 10.6 micrometers, which is invisible to the human eye. These lasers are known for their high efficiency and ability to produce powerful beams, making them suitable for various applications. CO2 lasers are commonly used in industries such as manufacturing, medical surgery, and cutting materials. Their ability to cut, engrave, and weld materials like metal and plastic makes them valuable tools in both industrial and medical settings.