Purifiers, air recyclers and ozone generators: what is each one for?
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With the new situation created by the COVID-19, interest in disinfectant products and devices that effortlessly clean spaces has exploded. Within this range, purifiers, ozone generators and air recycling systems have gained popularity. But it is important to understand what each of these devices is and what are they for. Mostly because in any case can a disinfectant device be used in the presence of people: any device that used in an occupied room does not have the ability to eliminate COVID-19.

[…] purifiers, ozone generators and air recycling systems […], it is important to understand what each of these devices is and what are they for.


Air purifiers

An air purifier is, in essence, a filter. In its format for domestic use, its action is limited to eliminating particles that are harmful to health, such as mites, dust, mould and some toxic substances that may be suspended in the air. If the purifier also has a certified HEPA filter, we can trap certain bacteria and viruses. However, it is not a disinfectant, because the range of microorganisms it traps is limited, and we cannot count on using it to protect us from certain diseases such as COVID-19.

However, it is a recommended device in homes where people with respiratory problems such as asthma or allergies live.

At a professional level, we can find purifiers that work with ions or UV rays. These systems would be more effective in eliminating viruses such as COVID-19, although giving them a domestic use could be dangerous, due to the harmful particles that they can give off.

Above all, it is important to remember that even the most powerful and effective purifier on the market would only collect those viruses suspended in the air, absorbing them into the filter. In no case could it eliminate those that were deposited on surfaces.

Air recycling

This system is not a device in itself. It is the system used by airplanes to fill the cabin with breathable air, since the air that could be collected at an altitude of 10,000 meters to inject into the cabin is not breathable for humans.

This recycling process consists of a system that combines two technologies: on the one hand, air is collected from outside, compressed, heated, and any impurities it may contain are removed, and then injected into the cabin as new, clean air and perfectly breathable. On the other hand, the air already present in the cabin is mobilized and filtered through HEPA filters, by means of a recirculation mechanism, so that, approximately every two minutes, all the air in the cabin of an aircraft has been filtered.

But, despite being a powerful and safe system, it does not prevent getting COVID-19, if sitting next to a positive, nor does it eliminate viruses deposited on surfaces.

Ozone generators

An ozone generator is a powerful disinfection device that removes viruses, bacteria, fungi, and any type of microorganism, including COVID-19. It removes both harmful particles that are suspended in the air, as well as those that rest on the surfaces of objects, floors and walls, reaching even the most hidden corners of a room.

But of course, this means that, unlike the previous two systems, ozone generators can only be used when rooms are empty, since it can be harmful to health. However, we can use it in complete safety by maintaining a few simple safety guidelines, since ozone disappears by itself, in a period of time of approximately one hour.


It removes both harmful particles that are suspended in the air, as well as those that rest on the surfaces of objects.

In addition, now, with UNUA’s iOzone products, users can access a type of generator that looks discreet and is easily installable, extremely powerful and easy to use, even from a mobile phone. By combining the iOzone Air generators with the iOzone Vision system, in addition, you will be able to know when you have reached the appropriate level of ozone to eliminate all microorganisms in a room and, most importantly, when the ozone has been completely destroyed and it is safe to return to use a space.

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Comunication department