DJ-Y2020 Ozone Air Disinfectant

I. Low-pressure electrolytic ozone generator

Water is the source of all things. We use low-pressure electrolysis with a proton-exchange membrane to separate oxygen molecules from pure water (H₂O), producing various forms of oxygen—negative oxygen ions, pure oxygen, and ozone. Thanks to our advanced technology for extracting oxygen, we can precisely and regularly release these different forms of oxygen into the air at varying concentrations, tailored to specific application needs. This comprehensive treatment—from sterilization and disinfection to removing methanol and benzene, eliminating odors, and enriching the air with oxygen—creates a healthy, safe, and comfortable living and working environment for you.

Currently, there are two main technologies for generating ozone: one is the high-voltage corona discharge method (high-voltage discharge type), which uses air as a raw material. In this method, a dielectric material maintains a certain discharge gap between two parallel high-voltage electrodes. When a high voltage is applied across these electrodes, the heat generated excites oxygen molecules in the air, causing them to gain energy and collide with each other, thereby forming ozone. The corona discharge method produces ozone using air as a source; however, since air contains more than 78% nitrogen, under high-voltage conditions, nitrogen reacts with oxygen to form a new substance—nitrogen dioxide. Nitrogen dioxide is internationally recognized as a toxic substance and is considered one of the factors contributing to cancer development. Moreover, the high-voltage corona discharge technology has limitations in producing high-concentration ozone; typically, the weight-based ozone concentration ranges from 1% to 3%. The other method is the low-voltage electrolysis method (low-pressure water-splitting method), which uses water as a raw material and employs solid-state noble-metal polymers as the electrolyte. By performing low-voltage electrolysis on water (H₂O), oxygen is separated to produce ozone. The resulting ozone concentration can reach as high as 18% to 20% by weight, and the gas produced contains only oxygen without any harmful substances. The low-voltage electrolysis ozone generation technology is suitable for small- and medium-sized equipment with relatively low output but exceptionally high ozone concentrations. Ozone concentration is conventionally expressed as a volume percentage. The ozone concentration produced by the corona discharge method using air as a source typically ranges from 1% to 3%; when using an oxygen source, the concentration ranges from 2% to 6%. In contrast, the ozone concentration produced by the low-voltage electrolysis method can reach 18% to 20%. Domestically, ozone concentrations are commonly reported in units such as mg/L or mg/m³. For the corona discharge method, ozone concentrations from air sources range from 10 to 40 mg/L, while those from oxygen sources range from 20 to 80 mg/L. For the electrolysis method using pure water, the ozone concentration can reach 250 to 280 mg/L. Low-voltage electrolysis ozone generators consume very little energy, operating at a voltage of only 3 to 5 volts, making them safe, stable in performance, and especially notable for producing ozone gas that contains neither nitrogen oxides nor volatile organic pollutants—substances identified by national environmental monitoring agencies as hazardous. As a result, these generators have gained widespread popularity among both domestic and international customers.

II. Selection of Ozone Generators

To select an appropriate ozone generator, it’s essential to understand the evaluation criteria for ozone generators. Generally, the most fundamental indicators for evaluating an ozone generator include: ozone output, ozone concentration, operating costs, reliability, service life, stability performance, and environmental protection metrics.

Currently, most ozone generators in China employ a high-frequency, high-voltage corona discharge method that uses air as the feedstock to produce ozone. A serious issue arising from this type of ozone generator is the excessive production of nitrogen oxides. Since air contains more than 78% nitrogen, when exposed to high-voltage electrical discharges, nitrogen molecules dissociate into atoms, which then preferentially combine with oxygen to form highly toxic nitrogen oxides—NOx. Among the NOx produced by high-voltage corona-discharge air-source ozone generators, nitrogen dioxide (NO₂) is the predominant component. Specifically: 1. NO₂ is poorly soluble in water and readily penetrates the lower respiratory tract, reaching deep into the lungs. Once it reaches the alveoli, NO₂ slowly dissolves in body fluids, forming nitrous acid, nitric acid, and their respective salts. These compounds, in the form of nitrite and nitrate ions, enter the bloodstream via the lungs and are distributed throughout the body, causing damage to organs such as the kidneys, liver, and heart. Moreover, NO₂ itself exerts a strong irritant and corrosive effect on lung tissue, leading to pulmonary edema. 2. Impairment of immune function: Long-term exposure to NO₂ not only reduces the phagocytic capacity of alveolar macrophages but also suppresses antibody formation in the blood serum, thereby compromising the body’s immune defenses. 3. Carcinogenic effects: Animal experiments have demonstrated that NO₂ possesses both promoting and initiating carcinogenic properties. In addition, the ozone generator market in China today is highly diverse and constantly evolving, with products of varying quality. Many people mistakenly believe that as long as ozone is produced, everything is fine, overlooking the fact that nitrogen oxides—the silent killer posing a tremendous threat to human health—are often overlooked. This is especially true for low-priced ozone generators, whose simple configurations and inferior materials make them far more likely to generate large amounts of nitrogen oxides (NOx) alongside ozone. In many pharmaceutical cleanrooms, ozone disinfection is performed frequently; some even use ozone during ongoing production processes—particularly in facilities with inadequate ventilation or fresh-air supply systems. As a result, nitrogen oxide levels in clean zones tend to accumulate, posing severe health risks to workers. Therefore, selecting a high-quality ozone generator is critically important.

III. Advantages of Low-Pressure Electrolytic Ozone Generation

Performance and Features of Low-Pressure Electrolysis

1. The resulting ozone concentration, by weight, is several times higher than that produced by the high-voltage corona method (reaching up to 20%).

2. The ozone gas produced contains no nitrogen oxides and no carcinogenic substances.

3. It employs a low-voltage electrolysis principle (3–5V), eliminating any risk of electrical hazards. It does not generate electromagnetic waves or noise, and when used alongside other precision instruments, it will not cause interference.

4. The ozone generator uses pure water as its gas source and does not require an oxygen source or any additional equipment external to the high-pressure ozone unit during operation, making it easy to operate and safe and reliable.

5. Low electrode wear, continuous operation capability, and ultra-long service life.

6. It is unaffected by the working environment and temperature, with a humidity resistance of up to 85%.

7. The pure water self-circulation cooling system eliminates the risk of overheating caused by continuous operation of the equipment.

8. A 20% high-concentration ozone is used for air disinfection and sterilization. An 80% oxygen concentration is used to improve indoor air quality and increase the oxygen content of the air.

Comparison of Various Performance Indicators Between DJ-Y Type Electrolytic Ozone Generators and Air (Oxygen)-Discharge Ozone Generators

IV. Design Parameters for the Application of the New GMP Cleanroom in Electrolytic Ozone Generators

*Low-pressure ozone generators can be arbitrarily combined according to the number of modules, or customized to meet customer requirements.