UVC Light And Coronavirus

Ultraviolet rays are radiation, which are the rays that are used to kill harmful germs and diseases. It is more powerful and has high energy than visible light and radioactive waves. However, they are less effective than gamma rays and X-rays. Nowadays, to protect yourself from viruses like ultraviolet, people are using UVC disinfection lamp.

In this article, you will read some myths and facts about UVC light and some points that will tell you how necessary is UVC light to prevent viruses’ effects.

Types of UV light

There are different kinds of UVC light found that are divided based on the energy they emit in the surrounding.

UVA light is the light that possesses the lowest amount of energy and interacts with your skin daily. You are mainly exposed to it when you are outside in the sunlight. Moreover, it causes damage to your skin at a low scale, causing aging and damaging to the skin at a low rate.

UVB light is the main factor that causes sunburns and causes skin cancer and is in significantly less amount in the sunlight. It is placed in the middle of the UV light spectrum.

UVC light is absorbed in the earth’s ozone and has the most energy. It is the less common light that we are exposed to among UVA and UVB. Moreover, it is obtained from human-made material like UVC disinfection lamp.

Does UVC light affect the new coronavirus?

Some research will determine whether the UVC light can prevent the new coronavirus. It is found out that

UVC light for disinfecting liquids

It can prevent viruses if it is directly exposed to the virus as it will inactivate the virus in 9 minutes.

UVC light for disinfecting surfaces

UVC light kills viruses on laboratory surfaces, as it reduced the activated coronavirus’s effect by 99.7 percent in 30 seconds If the UVC light has wavelengths up to 207 and 222 nanometers. The Far-UVC light is beneficial to kill the activated viruses. However, it can cause skin and eye disease and cancer.

UVC light for disinfecting the air

The UVC can also kill the air’s viruses, which can cause cold in humans 229E and OC43.

Ways to kill the new coronavirus through UVC light

As the coronavirus rate increases in most regions, the UVC light is in more demand and is a useful option to sterilize and kill germs. These UVC disinfection lamps are used for various purposes, mostly in healthcare centers, to prevent the activated viruses. It can disinfect things like:

Surfaces or the health care centers

medical equipment

operating rooms

individual defensive gear (PPE, for example, N95 face covers

The downsides to UVC light

drawbacks of these UVC light are that it needs a direct exposure of light to have effective operations and function to kill the virus. Otherwise, it will not be that much useful if dust or shadow come across.

Despite being beneficial to kill the virus, it has some additional drawbacks and risk for using them at your houses, such as

No specific wavelength, dose, and exposure of the UVC light have been found to kill the virus. If a high amount is exposed to humans, it can cause damage to the skin.

A high amount of exposure can lead to skin and eye damage.

The UVC light used at home has very low intensity, so it is not that effective and takes a longer time to kill bacteria and viruses.

UVC light lights can contain mercury or produce ozone, the two of which can be hurtful to people.

It can affect your appliances made from plastic, polymer if the UVC light exposure is prolonged.

Myths about UV light and temperature

There are some myths about the effect of UVC light on coronavirus. Let take a gander at a portion of the legends:

The first myth is that Sun contact can protect you from the coronavirus. The statement is a myth as sunlight comprises UVB and UVA light mostly, and it contains significantly less amount of UV light, which helps to inactive the virus.

The second most common myth about the virus is that keeping yourself prolonged in a UVC lamp can prevent you from the coronavirus. It is beneficial because UV light is directly exposed, and the lamp doesn’t contain that much UV intensity. If your UVC lamp stays for a longer duration, it can cause skin and eye infections and burns, and irritation.

The third myth is that if you sit in a hot bath, it may prevent the virus. This statement is not true as it can cause scaling and burning to your skin.

The fourth myth is that using hot air from a dryer containing UVC light can prevent the virus. It is not possible because of low-intensity, and if you sanitize your hand, use soap and sanitizer rather than the hot air.

Facts about preventing the coronavirus

To kill the virus, take this necessary precaution rather than following the myths.

Stay at your home and keep your distance from each other.

Wear the mask and always sanitize and wash your hands properly.

Drink ample amount of water.

By following these precautions, you can prevent the virus from nitrating to your body rather than following the myths mentioned above. To sum up, the UVC light turns out to be beneficial in lowering the virus’s effect. However, people need to take all the precautions and its use as alone the UV light can not stop the virus’s impact.

Besides all the benefits, the UVC light is harmful, directly exposed, and causes skin and eye problems, so be careful. Also, no one knows the intensity and duration required of UVC light to disinfect the coronavirus, and the UV light varies depending on the weather, time of day, where in the world you live, and the season. So, don’t experiment and use it for a prolonged time.

Potential of UV to kill Covid-19 in light of recent findings.

UV rays:

These are a form of electromagnetic radiations ranging in wavelength of 10mm and 400mm. It has been used recently in medicine to kill viruses. In many instances doctors even prescribe their patients to sit in the sun as the UV rays are a part of sunlight and helps kill viruses. Though when required in larger amounts, there are apparatus from which UV rays are shed on the desired object.

As the world was shook by ravaging virus Covid-19 recently one widely-spoken-of remedy was UV rays. Many believed that we could place whole human in the rays which would kill any germs and would help stem the spread of the virus. Even, the former president of the United States once uttered such words which was highly debated in the media if he had acted irresponsible suggesting remedies for Covid-19. Let’s see in the following lines what we know about UV rays whether medical professionals suggest it to be a good remedy or otherwise.

Pros and cons:

Though historically UV rays have been used to disinfect surfaces and water. When viruses are exposed to UV rays it inactivates them by damaging their structure i.e. their RNA. But using it on humans is not as simple as using it on surfaces and liquids as the human cells as well are sensitive these viruses and if exposed to them the genetic set-up of the cell is damaged leading to chronic illnesses like skin cancer. Similarly little exposure would have no salutary effects. Thus determining the exact level of UV rays is a predicament for doctors right now. Similarly depending on the tone of skin the effectiveness of UV rays vary which is further complicated by sensitivity of different parts of the body to UV rays. Thus avoiding side-effects of UV rays plays a larger role in its usefulness than its salutary effects. Now, those who suggest passing a whole man through UV rays to kill Corona Virus seem to be naïve since they have not imagined this excess amount of UV would cause more harm than good as it is advisable not to expose a large part of the body to these rays.

What do professionals suggest?

Dan Arnold is a professional working at UV light technology which provides disinfectants across UK. He reiterates the above statements and squarely says this is not a viable solution to Covid. Here are some reasons he stated for taking this position:

UVA which constitutes major part of the UV rays coming from the sun and is responsible for ageing and wrinkles on the skin. Also it has a high ■■■■■■■■■■■ power and can damage cells while less penetrating rays would be better for the purpose.

UVB forms next big part of UV radiations which has been linked to sunburns and skin cancer. For sensitive skins even a 5 minute extra exposure to sun would guarantee you a sunburn, that too in the normal sun which is the most suitable way to get UV radiations in low amounts.

The third type known as UVC is of major interest in killing viruses by damaging their genetic setup but it also disrupts human cells’ genetic setup.

So one last hope was to use harnessed UVC rays. But specifying the amount of UV required to kill the virus varied across different surfaces depending on the type of material the surface is made up of.

Similarly studies by Seladi Schulman suggest that some types of UVC are harmful to eyes. Additionally they believe that UVC light contains by-products such as Ozone and mercury, potentially harmful products. Furthermore the claim of treatment of Covid-19 by exposing to the sun is enervated by the fact that sun contains mainly UVA and UVB which have already been proven to be weak at killing SARS-CoV-2.


Though UV rays have been harnessed in recent times to treat illnesses caused by the viruses but the sensitivity of human cells to the same rays has hampered our progress to ace the treatment of viruses. Against the commonly held belief that UV rays will kill the virus research suggests there exists little hope in the remedy. The main challenge for medical professionals to sway viruses will be development of a less harmful technique which right now is not in sight. So it is recommended that masses consult professional doctors when there is need to use UV rays for any purpose specially when using them on human body and not rely on raw information available in the market as a slightest mistake could land you in severe trouble.