An ozone hole is really not a hole but rather a thinning of the ozone layer in the stratosphere that changes seasonally. At some times of year, the “hole” is larger. At other times, it’s smaller. It wasn’t until 1985 that scientists were certain that this was a major problem and it was human-caused.

UVB

The stratospheric ozone layer is a normal part in the Earth’s atmosphere that absorbs high-frequency ultraviolet (UV) rays and protects us from their damaging effects.

4 Ways to Prevent the Harmful Effects of UV Rays

1. Avoid overexposure to sunlight.
2. Apply broad spectrum protection sunscreen before stepping outside.
3. Wear sunglasses that can filter at least 98% of UVA and UVB rays.
4. Avoid or limit the use of artificial UV light.

Not all UV lamps result in ozone generation, however. The key is the glass used in the lamp. Soft glass or regular quartz glass allow the 185 nm UVC to pass through and generate ozone. But when quartz glass doped with titanium is used, all of the 185 nm UVC is absorbed.

one to two hours

UV light is able to effectively kill mold because the electromagnetic radiation that it produces is able to work as a disinfectant and can penetrate through organisms. Because of how quickly mold can spread, using ultraviolet light can be very effective at keeping mold from spreading and killing it at the same time.

UV light kills germs but doesn’t harm you or your device. Its UV light is completely safe for your gadgets. UV light can potentially cause damage with continuous, prolonged exposure to plastic.

That’s why UV light sanitizers can be a great alternative to products that might be out of stock. With any new technology, there will understandably be doubts about effectiveness, but research proves that in most cases UV sanitizers are effective in killing 99% of germs.

Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems. Exposure to UV rays can also weaken the immune system, so that the body has a harder time fending off infections.

ten seconds

No human, pet or plant should be in a room that is being sanitized with UVC light blub or room lamp. Keep portable UVC wands faced downward towards the surface you are sanitizing. When sanitizing an entire room with a bulb or lamp, use a timer or remote switch so you can turn the light on and off from a safe distance.

UV lights in the air handler will largely prevent mold from growing on the coil. Sometimes HVAC professionals recommend UV light for AC to be placed in the ductwork as well as the air handler. In the ducts, the lights neutralize the mold spores that pass through them.

• ALLRIER UV/Ozone Light Sanitizer.
• 59S UV Light Sanitizer Bag.
• CrazyCap UV Water Purifier Cap and Water Bottle.
• Coospider UV Light Bulb.
• GAKUS Portable UV Wand.
• Rdfmy Smart Phone UV Sanitizer Wireless Charger.

Yes. UV light is normally effective against all viruses, bacteria and protozoa. However, some microorganisms such as Cryptosporidium and Giardia have protective or thick cell walls that some low power UV light systems are not able to penetrate.

How do UV light sanitizers work? On the UV light spectrum there are UV-A, B, and C lights. Only the UV-C light can kill germs, says Philip Tierno, PhD, a clinical professor in the department of pathology at New York University Langone Medical Center.