EN207 is a widely recognised standard used to evaluate the performance of laser safety eyewear. This standard defines testing methods used to determine how protective filters perform when exposed to laser radiation.

One of the most important elements of this standard is the L-rating, which describes the level of protection provided at a particular wavelength.

These ratings include letters that represent different types of laser exposure conditions, such as continuous wave or pulsed lasers. The numbers associated with the rating indicate the level of attenuation provided.

Laser safety glasses that meet EN207 standards are tested to verify that the filters can withstand defined exposure conditions without losing protective performance.

Understanding these ratings helps users interpret the information printed on laser safety glasses and confirm that the eyewear matches the laser system being used.