'HOW DOES THE SUN SANITIZE?'
Sunlight is indeed very effective at blitzing bacteria and viruses.
There are three (3) different types of ultraviolet rays we need to be concerned with here:
1) UV-A
2) UV-B
3) UV-C
It is the second one, UV-B and the third one, UV-C, that is coming into play.
Again, please allow me to explain:
You see, each type of ultraviolet ray (UV) has a different wavelength with various levels of penetration.
UV-A has the longest wavelength of 320-400 nanometers (nm.) and is responsible for 95% of the UV radiation that reaches the Earth's surface. These are the ultraviolet rays that penetrate deep into the skin and are a factor in premature aging.
UV-B will give you sunburn if your skin is exposed for too long This ray has a wavelength of 280-320 nm and does have germicidal impact on bacteria and viruses.
Ultraviolet rays are harmful, but the protection of the Earth’s atmosphere and centuries of evolution have allowed human beings to develop a tolerance to moderate levels of UV-A and UV-B.
UV-C has a short wavelength of 100-280 nm and is an ultraviolet light that breaks apart DNA - leaving it unable to function or reproduce.
That means that the Sun's UV-C light is germicidal.
UV-C kills bacteria, and viruses. It can very effectively neutralize super-bugs that resist antibiotics.
Natural UV from the Sun delivers does kill viruses. Scientific studies have proven that sick children who received more UV-B from the Sun had fewer coughs and runny noses.
The 1903 Nobel Peace Prize was awarded to Niels Finsen for using UV-C light to fight tuberculosis.
The practice was so successful that hospitals and laboratories today use UV-C light to maintain sterile environments.
And one of the reasons why cell phones are perfect breeding grounds for bacteria is because they are objects kept in dark, warm places like pockets or purses. I clean my cellphone with UV-C sanitation.
Hospitals use UV-C to kill germs because its germicidal characteristics can be unequivocally relied upon.
UV-C is commonly used in hospitals, to clean and disinfect air and water filters, microbiology labs, etc. They rely on high strength UV-C for disinfecting because it works.
It kills germs quickly and effectively.
UV-C rays attack DNA and paralyze all cellular functions.
Bacteria, viruses, and even antibiotic-resistant superbugs have no tolerance to UV-C.
If UV-C is put into action on bacteria and viruses then it's like Darth Vader using the Force to choke you…