The 3 essential steps for ozone to be effective and safe
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Ozone is the most powerful disinfectant in the world, but its use is not to be taken lightly. Following a special procedure will ensure its optimised work.

For ozone to be fully effective, it is essential to carry out 2 steps: control the amount of ozone particles per million (ppm) that are going to be concentrated in space, and know the time it will take to apply this concentration of ozone so that reaches every corner of the room.

In order for ozone to be totally safe, we must also take a third step into account: ensuring that the ozone has been completely destroyed before reusing the disinfected space.

At UNUA we insist a lot on this point: after all, no one truly thinks of bathing with bleach.

Any disinfectant should be used with the necessary precautions, and with ozone this guideline is very simple and 100% safe: just wait for the ozone to be destroyed naturally.


Step 1: Control concentration

Ozone is highly effective when at a certain concentration in the air. According to scientific studies, from a concentration of 0.6ppm, ozone is capable of destroying 90% of the bacteria, viruses, fungi and other microorganisms present in a space. From a concentration of 1.2ppm its efficiency reaches 99.9% elimination of microorganisms.

Also according to a study carried out by the Prefectural Medical University of Nara (Japan), if we want to completely eliminate COVID-19 from a room, a concentration of 1ppm for 1h would suffice.

However, ozone generators do not have a controller that manages the type of concentration to be achieved. The only way to generate more particles per million is to keep the device active longer. At UNUA we have developed a range of smart ozone products to generate, visualize, manage and control the process.

Step 2: Know the required exposure time

As the generator produces ozone, it accumulates in space, reaching a higher concentration. However, it does not take as long to create a high concentration one meter away as in the other corner of the room.

In order for the required ozone concentration to reach the farthest corner, the generator must be kept active for longer. However, it is important to note that ozone is naturally destroyed in a very short period of time. Therefore, for an ozone generator to be really effective, it must produce ozone at high speed, that is, through a very powerful device.

On the market there are ozonating devices with a power regulator, but iOzone devices only have one power level: the highest; the only one that is really efficient.

Knowing the time required to complete the disinfection of a space is not easy. It will depend on the size of the room, the appliance you use and the power it has. A single UNUA iOzone AIR , for example, can disinfect a 200m3 diaphanous room. Whatever the device, a longer stay will require a longer use, but if the time you estimate necessary to complete the disinfection is around one hour, then it is best to use several devices at the same time, avoiding ozone to disappear before reaching every corner.


Step 3: Wait for the ozone to disappear

This is probably the most important step. Thanks to the iOzone Vision system that developed at UNUA, before entering the sterilized room, it will be easy to know if it is safe to enter by viewing the values ​​on the display.

The time required for all the ozone to be gone is around one hour after the task is completed, although this process will depend a lot on the conditions of the space, and if it has artificial ventilation -even when it is subsequently ventilated once the residual ozone is extinguished-.

Precisely to guarantee a 100% safe and effective ozone disinfection process, it is essential to be able to visualize and verify that this has been the case through the iOzone Vision; a simple, small and powerful device that offers all the necessary information in each step of the process.

It indicates in real time the ozone concentration that is being reached around the entire room and when the ozone has completely disappeared or has been reduced to harmless amounts. Features that not only improve the safety and efficiency of ozone disinfection, but also allow optimization of time and energy consumption.

For any further questions, remember that at UNUA we will be happy to assist you.

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Comunication department