Here is an example of fluorescing highlighter marker on a wall.
Ultraviolet light penetrate cell walls.
Easily installed inside your ductwork these products emit powerful rays of ultraviolet light that penetrate the cell walls of biological contaminants on surfaces damaging their physiological structure so they can no longer grow multiply.
It is defined as the depth at which the intensity of the radiation inside the material falls to 1 e about 37 of its original value at or more properly just beneath the surface.
This means it s unable to reach and damage living cells in the body.
Uvgi is used in a variety of applications such as food air and water purification.
Penetration depth is a measure of how deep light or any electromagnetic radiation can penetrate into a material.
It s the spectrum of uv.
If you look with just visible light you don t see much.
As much as uv c light can degrade cell walls proteins and membranes of bacteria and viruses she says it also is carcinogenic or can cause cancer affecting humans.
Healthy climate germicidal uv and uvc lights are designed to control and eliminate biological contaminants.