The New Trend Of Pathogen-Killing Lighting


LED lighting seems capable of just about anything these days. I’ve been noticing more LED lighting with the added function of killing germs. Here are two of my favorites:

The Indigo-Clean From Kenall Manufacturing

This pathogen-killing light fixture was developed at the University of Strathclyde, in Scotland, and the technology was licensed to Kenall, with rights for the North American healthcare market. The Indigo-Clean is installed in hospital ceilings and emits 405nm wavelength light. While not dangerous to humans, this wavelength produces chemicals, within the bacteria, that are toxic and halt their growth. The light is safe enough to be left on all day and fights pathogens, both in the air and on surfaces. The fixture is offered in three versions: blended white, indigo-only, or switchable white/indigo.

The Germ-Killing Door Handle From Hong Kong

Two clever teenagers in Hong Kong invented this germ-killing door handle that seems perfect for bathroom doors and beyond. They coated the handle with titanium dioxide that has the ability to kill bacteria. However, the titanium dioxide is much more effective when under UV light. So the students built the handle out of clear glass and shine a strong UV LED into one end of the glass, bathing the entire handle in UV, from the inside out. If that wasn’t enough, they also created a gearbox that converts energy from the opening and closing of the door into enough electricity to power the LEDs, so it doesn’t require any outside energy source to work. Quite clever.

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