portable ultraviolet sanitizing virus sanitizer uv-c lamp portable uv lamp sterilizer light hospital supplies: What is UV-C light? We are surrounded by many electromagnetic radiation even though they are invisible to our eyes. Ultraviolet (UV) light is one type of electromagnetic radiation with wavelengths between 100-400 nm. Not all UV rays kill germs UVA (400-315 nm) Accounts for 95% of UV produced by sunlight. It is often used in tanning beds plus the curing and drying of printing inks. UVB (315-280 nm) Accounts for a small portion of UV produced by sunlight. It can cause sunburn, but does not have enough energy to damage DNA. UVC (280-100 nm) Has the highest energy and can damage a bacteria’s DNA. Natural sunlight does not have UVC as it is filtered completely by the atmosphere. UV-C light is artificially produced and is often used in labs, hospitals and water treatment plants for disinfection. How do I know it’s working? UV-C germicidal technology has long standing proven results in sterilizing hospital rooms, medical equipment and treating water in commercial plants. How does UV-C rays kill germs UV-C penetrates into the DNA of any microorganism. DNA strands are paired in a particular order, Adenine (A) with Thymine (T) and Cytosine (C) with Guanine (G). When UV-C light strikes the DNA, it causes neighboring Thymine (T) to stick together and breaks the original sequence. This makes the microorganism unable to function or reproduce hence they die. Is UV-C harmful to our body? The simple answer is yes. Over-exposure can cause health problems such as skin cancer or vision damage. We never recommend to stare at UV-C lights for a long period of time.