Table 1.
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A Summary of the Four Laser Classes (as defined by ANSI)

ClassPower output
Class I, 1M, and 1CaExempt from radiation hazard controls
Class II and IIMLow powered
Class IIIR and IIIBMedium powered
Class IV (all medical lasers)High powered, >500 mW
ClassPower output
Class I, 1M, and 1CaExempt from radiation hazard controls
Class II and IIMLow powered
Class IIIR and IIIBMedium powered
Class IV (all medical lasers)High powered, >500 mW

ANSI, American National Standards Institute. aClass IC is designated for home use laser devices.

Table 1.
Open in new tab

A Summary of the Four Laser Classes (as defined by ANSI)

ClassPower output
Class I, 1M, and 1CaExempt from radiation hazard controls
Class II and IIMLow powered
Class IIIR and IIIBMedium powered
Class IV (all medical lasers)High powered, >500 mW
ClassPower output
Class I, 1M, and 1CaExempt from radiation hazard controls
Class II and IIMLow powered
Class IIIR and IIIBMedium powered
Class IV (all medical lasers)High powered, >500 mW

ANSI, American National Standards Institute. aClass IC is designated for home use laser devices.

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