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Laser Classifications
Lasers are classified based on the equipment’s ability to injure users and/or start fires with direct or reflected light. According to the University of Kentucky’s Environmental Health & Safety Fact Sheet, laser classes are as follows: • Class I: Extremely low power; deemed safe from all potential hazards
• Class II:
Safety Vendor K-LaserUSA K-LaserUSA Dan Scott & Associates, Inc.
Companion Therapy Laser by LiteCure
Companion Therapy Laser by LiteCure
Companion Therapy Laser by LiteCure
Cutting Edge Laser Technologies
Grady Medical Systems, Inc.
Companion CTS Therapy System
Companion CTL 10 Companion CTL 6
Harmony MLS Therapy Laser
GradyVet P-3000 Laser Trends magazine, November/December 2010 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes No No Model K-Series K-1200 Class IV Therapy Laser K-Series K-800 Class IV Therapy Laser Q Laser System No No No No No Yes Yes Yes Yes No
Protective eyewear recommended for person providing treatment?
Yes Protective eyewear
recommended for all humans in room during treatment?
Yes
Protective eyewear recommended for patient?
Yes
At least one pair for practitioner included free with basic model?
Yes
At least one pair for patient included free with basic model?
No
• Class IIIa: Intermediate power, continuous wave (1–5 mW). Direct viewing could be hazardous to the eyes.
• Class IIIb: Intermediate power, continuous wave (5–500 mW, pulsed 10 J/cm²). Direct viewing is hazardous to the eyes. Diffuse reflections of the beam can also be hazardous to the eyes.
• Class IV: High power, continuous wave (>500
mW, pulsed >10 J/cm²). Direct beam and diffuse reflections are hazardous to the eyes and skin. Class IV lasers can be a fire hazard depending on the reaction of the target when struck. Much greater controls are required to ensure safe operation. Most laser eye injuries occur from reflected beams of class IV laser light, so keep all reflective materials away from the beam.
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