What is ozone?

What is ozone?


Ozone is a slightly blue gas, with a smell of grass and strong oxidation, which is harmful to human body; Liquid ozone is dark blue, and solid ozone is purple black. It was discovered by German chemists in 1840 and named ozone because it reminds them of OZEIN (meaning life or soul) in Latin. There are usually two kinds of ozone: atmospheric ozone and environmental ozone. Atmospheric ozone exists in the outer atmosphere to protect us from long wave solar radiation; However, when oxygen combines with other compounds in the atmosphere, environmental ozone is formed by industrial pollutants.

What is atmospheric ozone?

Atmospheric ozone is formed by oxygen in the atmosphere under the irradiation of ultraviolet light. It is located in the outer layer of the atmosphere. It has the function of protecting the earth from the impact of ultraviolet light and preventing ultraviolet light from harming human beings. The atmospheric ozone layer exists in the stratosphere 20 km to 30 km above the ground, with a concentration of about 90%. At present, this protective layer is being destroyed by human beings through industrial pollution, so protecting it has become an urgent task for environmental protection organizations and people around the world.

What is environmental ozone?

Environmental ozone is a very dangerous substance, which is mainly a by-product of environmental photochemical reaction. At present, the existing ozone concentration in the environment is close to 0.02mg/m3, and the ozone concentration in some heavily polluted areas can reach 0.10mg/m3. Excessive ozone is harmful to human health. It strongly stimulates human respiratory tract, causing sore throat, chest tightness, cough, bronchitis and emphysema; It can cause neurotoxicity, dizziness, headache, decreased vision and memory; It can destroy vitamin E in human skin, leading to wrinkles and black spots; Ozone also destroys the body's immune system.

California of the United States stipulates that the air purifier must comply with the California 65 certification standard, in which there are strict regulations on the ozone release of the air purifier. The air purifier using high-voltage static electricity, negative ion generator and UV lamp tube for sterilization needs to pay special attention to the ozone risk, while the air purifier using the physical filtering principle of melt blown HEPA and activated carbon filter has zero ozone release and no ozone risk.


Regarding the removal of ozone, the health of the air can be maintained through the adsorption of activated carbon.

Ozone is an environmental pollutant, which is harmful to human health. It is necessary to pay attention to whether the ozone in the environment exceeds the standard. When selecting an air purifier, it is necessary to pay attention to the issue of ozone release.

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