A reader asks:

What is known about the effect of electromagnetic radiation (EMR) from sitting so close to a light box? I have noticed some products mention being grounded in such a way or having some kind of filter to reduce the radiation.


Our lighting engineers say not to worry about EMR from standard fluorescent light boxes; that no special filtration or grounding is needed. The light boxes used in our studies (see, e.g., www.cet.org) were evaluated for EMR by the responsible New York State agency, and found to show minimal emissions, well below established hazard levels. We believe that commercial advertising of such a need is alarmist and unwarranted, intended to boost sales of a specific expensive product.