본문바로가기

TECHNOLOGY

What is Hydroxyl Radicals(OH)?
OH radical, a natural cleansing material, is made in two processes. The first is the formation in the stratosphere where high temperature, high UV energy, and high ozone work together. In this case, a high concentration of OH radicals is created and it enables various pollutants disappeared that creates in the earth.

Second, it occurs when vegetable oil (terpene) discharged from natural plants meets a little amount of ozone present in nature, and this is one of the reasons that make you feel refresh in the forest.

OH radical is a natural purifying material, has strong oxidation power and purifies the atmosphere by itself. In addition, in the case of multicellular organisms, OH radicals are difficult to enter from the outside to the inside due to the enzyme mechanism, and for this reason, it is harmless to the human body. The OH radical density in the general atmosphere is 200,000 – 8,000,000 pieces/cc.
OH Radical in an Air Purifier
In order to sterilize various bacteria, there must be a mechanism to eliminate bacteria and viruses, and OH radicals have a high reaction, so they combine quickly to bacteria and viruses, and at the same time, they quickly take away H atoms and incapacitate them in the process of binding. In addition to OH radicals, F (fluorine), O3 (ozone), and H2O2 (hydrogen peroxide) have such reactions, but those toxic substances become a problem.
On the other hand, OH radicals are harmless and have high reactivity. In the case of noxious gases such as VOC, OH radicals remove these gases through a cascade reaction, and bacteria and viruses are neutralized through a single reaction.
The oxidation reaction of OH radicals is 1 billion times faster and more than 13 times more effective than that of ozone.

전자공고
Oxidizing Agent Electrochemical
Oxidation
Potential. (EOP)V
EOP Relative to
Chlorine
Flourine. 3.06 2.25
Hydroxyl Radical 2.80 2.05
Oxygen(Atomic) 2.42 1.78
Ozone 2.08 1.52
Hydrogen Peroxide 1.78 1.30
Hypochlorite 1.49 1.10
Chlorine 1.36 1.00
Chlorine Dioxide 1.27 0.93
Oxygen(Molecular) 1.23 0.90

- Sources : University of Southern California]

OH Radical Technology of Wellis
Wellis Air Purifier is a 'Indoor Air Quality Solution' is completely different from the existing filter type air purifier.
Wellis' natural air purification method was used as a military defense technology in Europe and has been commercialized in European hospitals since the 1990s. It is the world's only air sterilization technology that generates OH radicals by reacting a little amount of ozone (O3) with terpene oil in the cartridge.
The Mechanism of Disinfection
The OH radicals instantly steal hydrogen (H) from the proteins on the bacteria surface, breaking down the proteins. The combining of an OH radical with hydrogen (H) creates water (H2O), which returns to the air.
Therefore, how to generate OH radical artificially as much as possible which is similar amount in the nature is the key in this disinfection technology.