Archive for the ‘Light and Health’ Category

Marketing vs. Reality

There is now a great deal of noise from marketers promoting the use of light as a disinfection tool. The current COVID19 Pandemic has fueled this effort and created a vehicle for many to roll out claims and campaigns that have varying degrees of relevance.

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Opening Remarks

Modern human existence, as we all know, is primarily carried out indoors. Exposure to natural light is also highly seasonal, even when we avail ourselves of the opportunity to include it in our regular activities. At most, for many in the northern continents, natural light varies from being too feeble to be of value, great enough to be of value, but with outdoor temperatures too cold or hot to tolerate with regularity necessary for good health, or so highly variable throughout the year, that reliance on it as a natural part of our existence is impossible. Further, as we all age, subtle changes take place over time that are not always noticeable at their early stages, but become more of an issue as the years pass. As a result the light we are exposed to indoors, is the bulk of our photonic existence. (more…)