Ozone airborne virucidal disinfection
WHAT IS OZONE
Ozone (O3) acts as an oxidizing agent on germs. Also called “active oxygen” or “triatomic oxygen”, it contains three oxygen atoms rather than two like the oxygen molecules we normally breathe. Ozone is the second most reactive oxidizing agent in the world and can be used to destroy bacteria and viruses.
Ozone can be produced as a gas from the air’s oxygen, or as concentrated oxygen. Ozone in gas form can be dissolved in water, or used in its gas phase for a wide range of applications. In nature, Ozone is useful as it protects Earth against the Sun’s harmful ultraviolet radiation.
HOW DOES OZONE WORK
The third oxygen atom in Ozone is extremely potent and produces reactions. This atom easily attaches itself to other molecules, changing their oxidation state. When bacteria, fungi or viruses come into contact with ozone, their chemical structure changes form. This process is called oxidization.
Ozone effects and destroys bacteria, fungi and viruses, leading to their cell lysis. The process for destroying these microorganisms through the use of ozone is achieved with the destruction of their cell membrane and the diffusion of their cytoplasm. This renders the reactivation of the microorganisms impossible. This makes ozone the most environmentally friendly oxidant. After use, Ozone reverts back to oxygen.
OZONE CONVERSION TO OXYGEN
The semi-life of ozone in the air is significantly affected by temperature and the relative humidity in the atmosphere. As ozone reacts with odors, smoke, bacteria, fungi and vapors in the atmosphere, the semi-life of ozone in the air, under normal temperatures and conditions, is actually no more than 30 minutes.
Ozone’s strong oxidizing effect without leaving residuals, due to its rapid breakdown into oxygen, make it an excellent natural germicide and fungicide.
TYPICAL APPLICATIONS OF OZONE GENERATORS INCLUDE
- Air disinfection,
- Disinfection of all surfaces,
- Disinfection of devices for medical use,
- Effect as a germicide, fungicide, virucide, insecticide,
- Disinfectant/deodorant for busy areas
ADVANTAGES TO OZONE GENERATORS
- They disinfect and clean indoor air and surfaces
- without using chemicals (walls, floors, curtains, carpets, drawers, handles, etc.),
- They achieve a significant reduction in the risk of diseases and infections
- Environmentally friendly
- Easy to use
- Easy to maintain
OZONE PRODUCTION BY CORONA DISCHARGE
How does an ozone generator work with the Corona Discharge method?
Ozone (O3) is created from oxygen (O2) in nature and with ozone generators for commercial or industrial applications; however, ozone (O3) quickly reverts to molecular oxygen (O2). Ozone cannot be stored due to its very short semi-life and must be produced on site.
Ozone generators using the Corona Discharge method are almost exclusively used for industrial and commercial ozone applications. The fundamental principle is based on electrical discharge through a dielectric material to create ozone.
BASIC PRINCIPLES OF THE CORONA DISCHARGE:
Ozone is produced by electrical discharge, commonly referred to as a spark. Large quantities of ozone are produced by lightning during a thunderstorm. This is why we smell the “fresh” scent after a thunderstorm.
Any electrical discharge or spark will create ozone. The spark will split the oxygen molecule (O2) in the air and produce elemental oxygen (O). These oxygen atoms will quickly bind to another oxygen molecule (O2) to create ozone (O3).
The electrical energy used in producing ozone splits the oxygen molecule.
In a Corona Discharge ozone generator, the electrical discharge will take place in an air gap within the corona cell, specifically designed to split the oxygen molecule and produce ozone. A dielectric is used in this air gap to evenly distribute the electron flow and spread it to as great a volume of oxygen as possible.
In accordance with European Directive “REGULATION (EU) No 528/2012 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 22 May 2012 concerning the making available on the market and use of biocidal products.”
Gas ozone produced from ozone generators is classified into biocidal products.
Ozone, however, is not only toxic to microorganisms. It is equally toxic to humans. Users coming into contact with ozone must take personal protection measures, as the gas has an immediate effect on the respiratory system, causing dizziness and irritation in the eyes and throat. However, in small concentrations, ozone is not toxic to humans.