What are the dangers of ozone to human body?

Author : Trustifiltor

Update time : 2022-09-14 17:04:02

Ozone (O3) is a strong oxidizing catalyst, a light blue gas with a fishy smell, which is heavier than air and will decompose into oxygen in certain temperature as time goes on.

When the human inhales ozone, the mucous membrane of the respiratory tract will be stimulated and hurt. The extent of injury depends on the inspired concentration and the respiratory time . Ozone is always existing in our environment, usually at a concentration of about 0.015 PPM, we can not feel it. At concentrations up to 0.02 PPM, sensitive people can smell it.

The United States UL867 safety standard for ozone is ≤0.05PPM, and the European Union standard and Chinese standard be built based on the United States standard. UL867 means the 24 hours cumulative concentration of ozone, which is created by ozone generate, can not exceed 0.05PPM, in laboratory conditions (temperature 25°C, humidity 50%).

The direct harm of ozone to human body will cause explicit harm to human respiratory system, cause eye irritation, cause respiratory diseases, and even asthma.

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what is a safe ozone level

Mar .15.2023

The US UL867 safety standard for ozone is ≤0.05PPM, and the EU standard is formulated with reference to the US standard. my country's standard GB simply says that UL867 means that under laboratory conditions (temperature 25°C, humidity 50%), the cumulative concentration produced by any ozone source cannot exceed 0.05PPM.

what is the catalyst for the decomposition of ozone to oxygen

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Ozone destruction catalyst usually be manganese oxide , rare earth, and so on.Among them, manganese oxide is the most widely used catalyst. It can oxidize harmful ozone into oxygen at room temperature.

Ozone safety testing for air purifiers

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At present, many air purifier manufacturers and testing institutions have not conducted ozone safety testing of air purifiers in accordance with the above-mentioned national mandatory standards.The percentage of ozone concentration should not exceed 5×10-6. (Note, no more than 0.05ppm. About 0.1mg/m3)

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The COVID-19 pandemic has brought heightened attention to air quality indoor . People are thinking about how these invisible virus particles can spread indoors. However, the hazards of the indoor environment are not just the virus that causes the epidemic. According to WHO, air pollution is the world's greatest environmental health threat. Many people have always believed that ozone in the air is a double-edged sword. It has the side of sterilizing and inactivating viruses, but also has the side of endangering human health. Modern research suggests that ozone in indoor air has risen to be one of the most important pollutants.

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