UV-C light Vs. chemicals for germicidal disinfectant. Which is more effective?

UV-C light Vs. chemicals for germicidal disinfectant. Which is more effective?


Disinfecting a living space is essential to kill harmful pathogens, including germs and bacteria, and promote healthy air. The indoor air is particularly hazardous due to a lack of ventilation, human interaction, and the increase in microbe production. Homes, schools, hospitals, offices, and many other setups that involve a high degree of human contact are a breeding ground for viruses and bacteria to multiply posing a high risk of contamination. The hard times the world is facing has only added to the worry of even catching a common cold.

There’s an urgent need to incorporate a comprehensive disinfection method to eliminate germs and microbes from surfaces, floors, objects, and the environment to encourage a favorable living space without compromising on hygiene and cleanliness.

In the never-ending battle against the spread of infectious diseases, experts are putting in every effort to come up with a unique solution to target and destroy pathogenic microbes. While a wide range of chemical-based disinfection solutions have been ruling the market for several decades, they’re known to cause other health hazards to humans including respiratory issues, gastrointestinal disorders, and other chronic diseases. Moreover, chemicals aren’t capable of providing the desired results, and whatever results they achieve are only for a short time.

Chemical disinfectants as per WHO

The World Health Organization has claimed that spraying disinfectants doesn’t eliminate microbes, and poses a health risk. It is considered harmful and ineffective because the disinfectant is inactivated by pollutants, dirt, and debris.

Deep cleaning by chemicals causes the production of certain toxic gases that significantly increase the risk of airborne diseases. Most chemicals are combined that become highly toxic and they can cause serious issues to the eyes, skin, lungs, liver, stomach, and the nervous system. It can further lead to life-threatening conditions that require complex and expensive medical treatments.

Chlorine gas is used to disinfect wastewater and sodium hypochlorite is the alternative for this purpose. Chlorine gas is highly toxic and needs exceptional caution while transporting from one place to another.

The revolutionary name in disinfection

UV-C or ultraviolet C is an ultraviolet radiation with a wavelength ranging between 200 and 290 nm. As in case of the environment, the ozone layer filters this harmful radiation to prevent it from reaching the earth. However, UV-C is germicidal and is widely used in ultraviolet phototherapy.

UV light disinfection

Ultraviolet light is invisible to human eyes and it resides on the electromagnetic spectrum appearing between x-rays and the visible light, and is capable of sterilizing equipment to create a hygienic environment. This light is used extensively in the food industry, and in water purification process. The water purifier is equipped with a UV- producing lamp that delivers a strong dose of UV light to kill the microbes in the water while undergoing the disinfection process.

It’s also used with other technologies to eliminate and prevent the production of pathogens when traditional methods like chemical sterilizing and filtering aren’t effective. The wavelength ranging between 200 to 300 nanometers is powerful enough to destroy bacteria and germs and inactivate their structure to prevent them from multiplying.

The chemical-free, environmental-friendly UV disinfection procedures are highly effective, making it the most desirable disinfection option across residential, commercial, and industrial spaces.

The UV light advantage


It’s well-known that chemical disinfectants are toxic and pose serious health hazards. In comparison, UV light disinfection systems provide the desired results with exceptional performance to inactivate microorganisms present in a given indoor setting. All it takes is a few seconds to disinfect the entire area where chemicals take a significant amount of time minus the desired results.

The UV light is absorbed by the pathogens DNA to emit powerful bacterial effects that inactivate their cells thoroughly. This procedure ultimately destroys the structure of bacteria and virus. LED lamps are available that have 100 to 280 nm germicidal wavelengths, but aren’t sufficient for disinfecting surfaces and that’s where Unimech Healthcare’s product range comes to your rescue. Unimech Healthcare has developed unique and innovative UV light disinfectants that ensure to kill 99.999% of germs including viruses like coronavirus.

UVC light is the chosen disinfection procedure used to decontaminate hospital rooms, operating theatres, surgical tools, and other areas of the hospital. Combining the technology with traditional cleaning methods reduces the risk of contamination by a huge margin. UV-C light is capable of penetrating hard-to-reach areas, and disinfect every nook and corner with optimum efficiency. It’s also strong enough to destroy the DNA of pathogens and is the one and only solution against superbugs.

Likewise, the light is used to attack pathogens in office spaces, homes, showrooms, and other places where human footfall is high. Consider these advantages of UV-C light:

  • UVC light disinfection is completely non-toxic, and there’s a good reason for that
  • It’s the most effective type of disinfection, and there are results to see
  • UV light disinfection kills pathogens by attacking their immunity
  • UVC light disinfection doesn’t have to be portable, and it can autonomously do the work
  • The procedure is affordable and cost-effective in the long run
  • The light can help your business and your customers to create more value
  • It enjoys an unmatched position to deliver optimum results with minimum effort

A caution to consider

Despite its one-of-a-kind advantage, UV-C light can cause skin cancer, cataracts, and other  health ailments if people are exposed directly to the light and hence people are strictly advised not to be in a room while the UVC light is in use. However, there’s also a more recent development of narrow-spectrum UV-C rays ranging between 207 and 222 nm called far UV that can kill bacteria and viruses without penetrating the outermost layer of human skin.

All Unimech Healthcare products address this issue and protect the health and safety of its customers. Their high frequency UV light disinfectants are smart devices that can be controlled with apps to prevent accidental exposure of UVC light. A set of other surface disinfectants come with in-built sensors to work only during the absence of human activity. Kindly visit our website to know more about our products.

The Final Word

Researchers and investigators from renowned radiological research centers are developing an improved, low-cost solution to eliminate airborne microbes in several indoor public places. Emitting continuous low doses of far UV-C light can destroy viruses and bacteria without affecting humans.

It’s a revolutionary new tool designed to prevent the spread of airborne microbial diseases. The far-UVC light device placed overhead in hospitals, offices, airports, schools, and even in airplanes keeps a comprehensive check on seasonal epidemics and global pandemics. It’s being considered to be used in several public indoor spaces across various industries to provide a comprehensive protection against pathogens, being far more effective in comparison to traditional chemical disinfection procedures.


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