Recently, in order to deal with heavy ozone pollution weather and protect public health, the traffic management departments of some cities have decided to launch temporary traffic management measures for yellow warning of heavy ozone pollution weather and implement temporary traffic management measures. We can't help but wonder: what is the virtue and ability of ozone pollution, and why can it surpass PM2.5 to achieve a remarkable position at this time?
Ozone filter is a commonly used air purifier filter, its main function is to remove odors and harmful gases in the air. It plays a very good role in deodorization and air purification by decomposing ozone in the air into oxygen, and decomposing, adsorbing or converting harmful gases into harmless compounds.
Usually there are many types of deozone filters, such as aluminum honeycomb deozone filters, ceramic base deozone filters, industrial sponge deozone filters, etc., which factors be related to one-time removal efficiency of the ozone filter
Catalyst generally refers to a substance that can increase the rate of a chemical reaction in a chemical reaction, but does not itself participate in the chemical reaction. Theoretically, the lifetime of the catalyst is infinite.
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.
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.
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)
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.
The places where we can smell the obvious smell of ozone are usually in printing shops and other places. The smell of ozone in the hotel kitchen may be produced by the ultraviolet lamp tube for anti-virus in the kitchen, the UV lamp tube inside the hood all-in-one machine, the UV lamp tube in the pipeline, and the high-voltage electrostatic fume purification connected to the pipeline. device. We can basically find the source of ozone smell by understanding the kitchen utensils inside our kitchen and the corresponding fume exhaust system.
At present, office automation is becoming more and more popular. Many offices have a large number of office equipment such as computers, laser printers (including copiers) and fax machines. Some of them will produce ozone and odor during work. With the enhancement of people's awareness of environmental protection, office workers are paying more and more attention to whether the odor produced by laser printers (including copiers) equipment, including ozone, will affect health.