What term describes emitters producing less than 28 W (upper tier) or 5.6 W (lower tier)?

• A. Hazardous Emitters
• B. Potentially Hazardous Emitters
• C. Non-Hazardous Emitters
• D. Low-Power Emitters

Answer: (C)

Emitters are categorized by how much power they emit to indicate potential risk. When an emitter produces less than 28 W in the upper tier or 5.6 W in the lower tier, its energy output is not sufficient to pose a hazard under typical conditions, so it is considered non-hazardous emitters. The other terms imply some level of risk or are informal labels that don’t reflect the standard classification for these thresholds.