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Ozone is a gas. It is a powerful oxidant with specific antibacterial properties

Ozone is a natural remedy for the disinfection and sanitation of surfaces, environments, water and food.
Ozone eliminates viruses, bacteria and pathogens.
According to the ISS – COVID-19 Report of the Istituto Superiore di Sanità of 25 May 2020, “ozone generated in situ from oxygen is an active ingredient with a” biocidal “action under review under the BPR2 as a disinfectant for surfaces ( PT2 and PT4) and drinking water (PT5) and for use in cooling towers of industrial plants (PT11).

Ozone is an essential gas for life on earth due to its ability to absorb ultraviolet light; the ozone layer present in the stratosphere completely protects the Earth from the harmful action of ultraviolet UV-C rays and, almost completely (98%), from that of UV-B rays coming from the Sun.

It is an unstable gas: it cannot be stored and must be produced at the time of use.

It has a characteristic pungent smell – the same that sometimes accompanies thunderstorms, due to the ozone produced by the electrical discharges of lightning; its name derives from the Greek verb ὄζειν, “to stink” – and it is strongly irritating to the mucous membranes.

Incorrect use of ozone (incorrect concentration or persistence of use after saturation) can therefore cause discomfort and irritation to the mucous membranes. Prolonged exposure to excessive concentration levels can be harmful.

The biocidal activity of ozone against the virus consists in an oxidation and consequent inactivation of the specific viral receptors used for creating the bond with the cell wall to be invaded. In the case of bacteria, ozone causes the oxidation of the cell wall and its consequent lysis.

The ozonizers must be adapted from time to time in relation to the spaces (dimensions, materials involved) and the targets. Therefore, it is necessary to set the ozone generator that allows an optimal gas concentration for the environment to be sanitized, in order to limit the operating time of the generator. Ozonizers work at concentration and saturation
Ozone is an unstable gas and spontaneously decays to oxygen. The time required for ozone decay, dependent on temperature, humidity and chemical and biological contamination, is always a function of the concentrations of use.
It is preferable to carry out the treatments at night so that when work is resumed the quantity of environmental ozone is within the health safety limits.
The ozone treatment can therefore be carried out periodically.
It is not necessary to use staff but only a suitably trained resource.

At the present time, there is no sanitation system certified by the health bodies, both at national and community level.

As with many other products used in disinfection, there is no specific certain information on the efficacy against SARS COV2, although several studies are available that support its virucidal efficacy (Norovirus) in environments.

The International Ozone Association ( confirms the effectiveness of ozone for the inactivation of many viruses even if it is not aware of specific research on SARS-CoV-2.

Pending certification by government organizations, it must be considered that the use of ozone is currently permitted internationally in the food sector, for surface sanitation and drinking water (FDA, USDA, US-EPA, CNSA).

The ozone treatment allows the complete elimination of any pathogen (viruses, bacteria, molds) due to its biocidal capacity.

The ozone treatment is therefore not only an “anti-Covid” solution but allows, in the long term, to preserve the environments and the surfaces treated constantly sanitized.

The ozone generators must comply with the directives on low voltage (Directive 2014/35 / EC), electromagnetic compatibility (Directive 2014/30 / EC) and Directive 2011/65 / EC (RoHS) on the restriction of hazardous substances.