Curiosity About UV-C Rays

Jan 31, 2021 | UV-C

Ultraviolet rays are electromagnetic waves that contain germicidal properties. It has a wavelength that ranges from 100-280nm, and it’s maximally effective at a wavelength of 265nm. UV-C rays are very destructive to the RNA and DNA of yeasts, molds, viruses, and bacteria, as it prevents their proliferation. Germicidal lamps don’t contain ozone, and they emit light at 254nm, which is around 85% of maximum efficiency.

Benefits Of Making Use Of UV-C Germicidal Lamps

Ultraviolet (UV) purification is a highly effective method used in purifying the surroundings of biological contaminants like viruses, molds, mites, fungal spores, and bacteria. We can make use of Lighting devices with UV germicidal sources as an efficient alternative tool to chemical disinfectants and normal antibiotics that cause damage to the human body when it comes into direct contact with it, either by inhalation or ingestion and also cause environmental contamination.

Therefore, it’s recommended and recognized as a safe disinfection system by recognized organizations and bodies like the International Ultraviolet Association, World Health Organization, the American Society of Heating, Refrigeration, and Air Conditioning Engineers. Scientific publications of various types are available and, in particular, a number of technical reports and international standards have been published by the International Commission on Illumination (CIE) over the years on the topic of ultraviolet radiation, on how it is measured, on its use and effects and as a means of disinfection:

  • CIE 187: UV-C 2010 photocarcinogenesis risks of germicidal lamps
  • CIE 155: ultraviolet air disinfection 2003

UV-C lighting fixtures are used in several sectors and mainly in:

  • Veterinary clinics and stables.
  • Food and pharmaceutical industries.
  • Hospitals (clean rooms, medical clinics)
  • Air conditioning systems – water treatment systems.

We use LDD UV-C lamps with a wavelength of 254nm, which is best for disinfection.

But on a regular basis, they are often needed in shops, offices, warehouses, and areas open to the public.

The possible applications of UV-C rays have no limits: In domestic environments also, they are used to maintain healthy air and water, combat mold growth, and prevent dust mites.

How UV-C Germicidal Lamps Work

UV-C radiation has a photolytic effect on RNA and DNA, so it thwarts the reproduction of microorganisms such as mold, yeast and viruses, bacteria. With wavelengths below 320nm, purification effects are reached, with maximum efficiency at 260nm.

Microorganisms must be on the surface of an object or carried by air for elimination with UV-C rays to take place. Different doses of UV-C are needed by each organism for its inactivation or elimination. One document published by CIE (CIE 155: 2003 Ultraviolet Air Disinfection) shows a table that explains the amount of UV-C radiation (expressed in J / m2) necessary for the destruction of each microorganism.

Precautions For The Use Of Germicidal Lamps

Since UV-C TUBES are categorized according to IEC / EN 62471 (Photobiological Hazard): Risk Group 3, the radiation from this UV-C lamp is a risk to human health.

Lighting fixtures with UV lamps are specially built to disinfect the air in rooms without humans.

In fact, the existence of free radiation generated by the devices themselves and reflections from walls and ceilings can cause the propagation of ultraviolet waves causing conjunctivitis and erythema. And it is crucial to shield the eyes and skin from coming in direct exposure by making use of suitable protective devices. We also install our lamps in the ventilation system(HVAC) and it’s ray do not fall on the skin of a person or an animal without causing any harm. Contact us to help you with this and get the best service.