What Is a Low Concentration Ozone Generator?
A low concentration ozone generator is a device that generates low concentration ozone.
Ozone is an isotope of oxygen consisting of three oxygen atoms, and its effects are diverse, including sterilization, deodorization, decolorization, and oxidation.
On the other hand, it is a toxic gas with a distinctive odor, and at high concentrations it has adverse effects on the human body.
General industrial ozone generators are highly concentrated and are not suitable for use for sterilization and deodorization of the work environment because the ozone concentration is too high and has adverse effects on the human body. Low concentration ozone generators are intended for safe sterilization and deodorization in the work environment.
Use of Low Concentration Ozone Generators
Low concentration ozone generators are used to remove mold odor, bacteria, viruses, and organic matter in the work environment safely because they generate low concentration ozone that has no adverse effect on the human body.
Currently, devices using low-concentration ozone generators are available in a wide-area (about 50 m2), a personal space type (about 15 m2), and a portable type for taking care of personal surroundings, depending on the size of the space.
Examples of Low Concentration Ozone Generator Use
- Wide-Area Type: Waiting rooms and corridors of medical institutions and nursing care facilities, floors of general companies, classrooms of schools and cram schools, etc.
- Personal Space Type: Private restrooms, entrances, private rooms in hospitals and nursing care facilities, restaurants, etc.
- Portable Type: Airplane, train, car transportation, interview and business meeting in reception rooms and VIP rooms, eating out, etc.
Principle of Low Concentration Ozone Generators
The ozone generation method of low concentration ozone generators is mainly the corona discharge method, which is a type of discharge method. Corona discharge is a type of electrical discharge in which needle-shaped electrodes are placed in the air, and when a high voltage is applied, an airborne discharge occurs around the tip of the needles.
The area around the needle is filled with oxygen-containing gas, where the electrons generated by the corona discharge convert oxygen into ozone. The electrons released into the gas by the discharge collide with oxygen molecules, causing them to dissociate into oxygen atoms (O2+e→2O+e), and ozone is formed by the collision of three bodies (O+O2+M→03+M).
Since the corona discharge type has low ozone generation efficiency and does not easily produce high concentrations of ozone, it is used as a low concentration ozone generator in situations where the adverse effects of ozone on the human body and the environment are a concern, but where the sterilizing effects of ozone are desired.