LONGER LASER B1 - Safety Precautions and Guidelines; Laser Hazards and Classification

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A. Safety Precautions
(1) The LASER B1 engraves and cuts materials by the means of a
high-energy diode laser beam.
The hazards associated with a high-energy diode laser beam
include the possibility of fires, generation of hazardous and/or
irritating toxic fumes, but more importantly damage to eyes and
skin.
(2) Laser engravers are divided into several internationally valid
classes based on their performance and the risk of injury. The
LASER B1 falls into the Class IV (Class 4 IEC standard focus on the
American FDA classification).
Laser class
Class Definition
Class I
Class I laser radiation is not considered hazardous.
Class IIa
Class IIa laser radiation is not considered
hazardous if viewed for any period of time less
than or equal to 1x10
3
seconds but is considered a
chronic viewing hazard for any period of time
greater than 1x10
3
seconds.
Class II
Class II laser radiation is considered a chronic
viewing hazard.
Class IIIa
Class IIIa laser radiation is, depending upon the
irradiance, either an acute in-trabeam viewing
hazard or chronic viewing hazard. If viewed
directly with optical instruments, Class IIIa laser
radiation is classified as an acute viewing hazard.