What is a common characteristic of Class 1 lasers?

Class 1 lasers are distinguished by their level of safety; they are considered safe for normal operation and have been designed in such a way that they cannot emit hazardous levels of laser radiation. This is generally due to the enclosure or design features that prevent exposure to laser emissions that could cause harm.

For example, these lasers are often found in devices such as laser printers and barcode scanners, where the laser operates at low power levels and is contained in a way that protects users from direct exposure. The classification reflects an understanding of the laser's output combined with mechanisms that keep the user safe during typical usage scenarios.

This makes Class 1 lasers very different from other classifications, such as Class 3 or Class 4 lasers, which can pose significant hazards and require safety protocols to manage the risks associated with their use.