Surface Disinfection by Exposure to UV light

UV-C light has a wavelength between 200nm to 280nm. The Cellular DNA and RNA heavily absorb this high energy short-wavelength germicidal light. Resulting in damages to their nucleic acids, which prevents the affected microorganism from infecting and reproduction, essentially killing and inactivating microorganisms such as bacteria, viruses, protozoa’s, and fungi. 

Essentially, the absorbed UV-C energy results in the formation of new bonds between nucleotides creating thymine dimers. Excessive accumulation of thymine dimers in DNA prevent s the cell from doing its functions accurately and causes cell death. The distance between light source and surface is sufficient critical disinfection can be achieved by positioning multiple bulbs at different angles.

UV disinfection methods are highly advantageous for areas like an operation theatre, biosafety hoods, and hospitals as it is a chemical-free method and works against a wide range of microorganisms, including superbugs.

UV light can be used on a variety of surfaces, unlike the chemical disinfects. Any surface exposed to the appropriate dosage of Germicidal UV light can deactivate pathogens, rendering them harmless, and prevent them from reproducing. It is essential to follow the safety guidelines given by the manufacturers and ensure you are not directly exposed to UVC rays as exposure can have detrimental effects on skin and eyes and can cause skin cancer.

Scientific studies regarding static fixtures have found that hanging UV tubes from a central area of seven feet can achieve efficient disinfection against various pathogenic bacteria’s, including the spore-bearing clostridium with an exposure time of 30 minutes.

Effective, efficient, and safe for use in hospital environs for high-level disinfection. This quality makes UVC energy effective, environmentally- friendly, and chemical-free to prevent microorganisms from replicating in any environment, especially in hospitals.

Surface disinfection by UV light exposure is beneficial because it is a chemical-free process and leaves no residues. It is a mostly automated disinfection method; hence it eliminates human errors and requires less workforce if necessary. This method does not require transportation, storage, or handling of toxic or corrosive chemicals.


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