UVA rays are thought to cause premature aging and have recently been linked to some types of skin cancer; however, UVB rays are the leading cause of skin cancer. Exposure to UVA rays from black lights is well below recognized safety limits and is not dangerous for people who use them, work near them, or have them at home.
UV lightis safe when used in the form of a UV lamp or bulb and does not come into contact with skin or eyes. Over the years, scientists have discovered the power of ultraviolet light to kill germs and have used it to create a bulb that emits powerful but safe UV rays, disinfecting surfaces and polluting the air.
You should be aware that not all UV products are safe or effective. Make sure you trust the company you buy from. Although you should never put UV lamps on your skin or eyes, UV light is safe for home purification when installed by a professional. It is well known that ultraviolet radiation can aggravate skin diseases in patients with lupus erythematosus.
While many patients are advised to avoid sunlight and artificial tanning, it is not clear how best to advise patients regarding the use of indoor lamps. In fact, many of the light bulbs commonly used in the home and workplace emit low doses of ultraviolet radiation. The irradiance is considerably lower than that of the sun, however, the exposure time can last for hours and is usually repeated daily. Therefore, it is possible that this chronic exposure could ultimately result in a significant accumulation of damage. Sorry Barry, that's also out of our knowledge.
However, it must be said that UV-C rays are not only dangerous for the eyes, but they are also dangerous if exposed to the skin. We do not recommend handling equipment or using these bulbs outside of a fully sealed, commercially-manufactured filtration or sterilization unit. Exposure to germicidal UVC light on the eyes or skin is dangerous, so I suspect that any portable UVC germicidal lamp could be fake and contain only a standard disc-type UV light source that has no germicidal properties at all. Ultraviolet light and radiation are dangerous when it comes to powerful rays that occur in nature and come into contact with the skin or eyes. The wavelengths emitted by these UV lamps are between 370 and 400 nm, just on the edge of visible light.
With that in mind, we've put together a practical guide to help you determine which UV light bulb is right for you. While BLB bulbs are not hazardous to health in the same way as germicidal UVC bulbs, they should always be handled carefully. Kays Kaidbey; your knowledge of the clinical relevance of exposure to low doses of UV rays was fundamental to understanding the risk of chronic exposure to light bulbs. When buying UV light bulbs, it's important to know what type of bulb is right for your needs.
A light blue (BLB) bulb won't help you kill flies, just as a germicidal UV tube won't help you detect counterfeit bank notes. It is often referred to as ultraviolet “light”, but UV rays are a type of electromagnetic radiation with shorter wavelengths than visible light and longer than those of X-rays. The type of UV radiation emitted by these bulbs targets the DNA of microorganisms, causing cell death or making reproduction impossible.