Skin Skin burns are possible from acute exposure to high levels of optical radiation. At some specific ultraviolet wavelengths skin carcinogenesis may occur. In addition, laser induced reactions can release hazardous particulate and gaseous products. Electrical Hazards Lethal electrical hazards may be present, particularly in high-power laser systems. In additional to radiation hazards inherent in laser beams, other forms of potential danger exist in various components of laser systems.
Electrical energy is utilized in most lasers and chemical hazards abound as well.
Cryogenics, bottled gas, combustibles, X-rays and especially mechanical hazards are all associated with laser operations. These hazards must be considered in the laser environment and laser personnel training is required to complete the safety orientation. The engineering aspect of designing laser should incorporate safety considerations to prevent exposure of personnel to potential harmful conditions. Access Control of a Laser Environment Post signs and warning lights at all entries to Class 3 and 4 laser facilities. The signs must conform in size, color and wording with the current ANSI Standard.