CO₂ lasers are widely used in industrial cutting, engraving, manufacturing, and medical procedures. A common CO₂ laser wavelength is 10,600nm, which falls within the far-infrared portion of the electromagnetic spectrum.

Because this radiation is invisible, relying on visual awareness is not an adequate safety measure.

Laser safety glasses designed for CO₂ applications use filters specifically engineered to attenuate far-infrared wavelengths. The eyewear should list protection for the wavelength generated by the laser system and provide an appropriate Optical Density.

CO₂ laser environments may also involve reflected radiation, so appropriate engineering controls and safe operating procedures remain essential.

When selecting laser eyewear, users should review the complete wavelength and OD specifications rather than choosing a product based solely on the term "CO₂ laser glasses."