Can UV-C kill COVID-19?

Can UV-C kill COVID-19?

When COVID-19 hit the world, everyone was scrambling for a way to keep themselves protected. Regular folk settled for wearing masks, while others carried hand sanitizer around with them when they left the house to keep their hands clean. As online shopping reached a new high, increasing numbers of people began looking for a convenient solution to clean their belongings. More Ultraviolet (UV) cleaning items hit the market than ever before, from UV-light toothbrush cleaners to UV-light appliances, which claimed to keep the home clean. In this article, we’ll be discussing whether UV-C can kill COVID-19 and why you should buy it.

Let’s start with the basics: UV-C light is an excellent choice for your sanitization needs. It has the shortest wavelength of all the three UV rays (UV-A, UV-B and UV-C), which makes it the most powerful. Its high frequency scrambles the nuclear material of bacteria and viruses, effectively preventing them from reproducing further. Once these germs can’t continue multiplying, they can’t infect people, rendering them harmless.

It’s been used in hospitals for years to sanitize operating rooms and surgical instruments, so you can be sure that it’ll clean your keys well.


So far, UV-C light has been proven to reduce COVID-19.

UV-C light has also proven to be effective in reducing COVID-19 regardless of whether it’s on a surface, in a liquid or in the air.

In a liquid.

This study by the American Journal of Infection Control found that UV-C light exposure was able to deactivate the new coronavirus in 9 minutes in liquid cultures.

On a surface.

When the virus is on a surface, exposure to UV-C light for 30 seconds was sufficient to reduce the virus by 99.7%.

In the air.

Far-UVC light has been found to kill 99.9% of airborne coronaviruses within 25 minutes. While it hasn’t been proven UV-C light can kill SARS-CoV-2 (also known as COVID-19), researchers expect these benefits to extend to COVID-19 as well.

UV Sterilizer

Should you buy a UV-C disinfection device?

In short, yes. UV-C is more than capable of meeting all your cleaning needs.** Whether you just want to use it to clean everyday items or you want to deep clean specific areas of your home, UV-C is powerful enough to handle it.

**It goes without saying that UV-C light should never touch human skin. It should only come into contact with materials it’s meant to sanitize. Ensure you exercise caution when using these devices.

UV-C Lamp

Common myths about UV-C:

  1. UV disinfection tools are dangerous to human beings.
    It’s no secret that UV-C light can kill virtually any microorganism and bacteria, but this potency means extra care must be taken when handling them. Unlike other hazards, exposure to UV light doesn’t trigger a protective response in your body (think of your eyes squinting in response to harsh sunlight or your body reacting to heat). This subtle nature means it can be easier to get hurt by it. However, following common-sense safety rules means you can avoid getting hurt. Examples of these include never looking directly at UV-C unless you’re wearing proper eye protection. Avoid going into rooms where UV-C is active. If you must enter such a room, wear personal protective gear in rooms where UV-C is actively being used to clean.

  2. UV-C disinfection isn’t reliable enough to destroy deadly pathogens.
    Like we mentioned earlier in the article, UV-C is really powerful. It’s capable of killing viruses, bacteria and even fungi, so you shouldn’t rule it out if you’re looking for a cleaning solution in your home or office.

  3. All UV-C lamps are the same.
    No two UV-C lamps are made equal. There are many kinds of UV-C lamps, ranging from Low-Pressure Mercury lamps to Pulsed Xenon lamps which are used to treat surfaces in operation rooms. Some lamps emit very specific UV-C wavelengths, while others emit a broader range. These wavelengths determine how effective the lamp is at deactivating a virus and is also related to the safety and health risks associated with the lamp. Other lamps emit visible and infrared radiation, so it's essential to do your research before making a purchase.

Some questions you should ask before deciding on a UV-C disinfection product include whether or not the light sources has mercury in it, whether it generates ozone and if there are any safety risks associated with the product.

In summary, if you’ve decided on buying a UV-C disinfection device, we recommend that you select products where the UV-C light sources are made by Philips. They are a brand you can trust who have over 35 years of experience in UV-C lighting. Philips UV-C light sources are laboratory tested and all of their test results are backed by scientific research and experiments. To learn more about Philips UV-C lighting, simply visit


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