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2020-07

Xinofei and Boston University confirm that their UV-C ultraviolet light source can effectively inhibit the new coronavirus

2020-07-24

2020-07

Use ultraviolet disinfection lamp to room disinfection? These points must pay attention!

2020-07-24

2020-07

National Ministry of Health regulations on safe ozone concentrations

Ozone is a non-toxic and safe gas. When the concentration is higher than 1.5ppm, ozone stimulates the human respiratory system, Ozone Association to develop safety and health standards:(1ppm = 1 mg/m3) International Ozone Association: 0.1ppm, 10 hours of exposure USA: 0.1ppm, 8 hours of exposure Germany, France, Japan and other countries: 0.1ppm, contact for 10 hours China: 0.15ppm, 8 hours of exposure National Ministry of Health regulations on safe ozone concentrations Shenzhen Dongri Yingneng Technology Co., Ltd. Ozone Gas Detector The product of its concentration and contact time can be regarded as the reference point. When the concentration of ozone is 0.02ppm, people with agile sense of smell can detect it, which is called sensory critical value. When the concentration is 0.15ppm, it is olfactory critical value, which can be sniffed by ordinary people and is also a health standard point. When the concentration reaches 1-10ppm, it is called the stimulation range, and more than 10ppm is the poisoning value. National Ministry of Health regulations on safe ozone concentrations Shenzhen Dongri Yingneng Technology Co., Ltd. Gas Detector People's perceived concentration of ozone is only 0.02~0.04ppm, and there is a certain interval between the safe concentration. In the indoor use of ozone to purify the air, smell the ozone smell has basically reached the role of disinfection. At about 0.02ppm, the air will feel particularly fresh. The refreshing feeling in the air after a thunderstorm is due to the large amount of ozone and negative ions produced by lightning. Some scientists have concluded that if there is no ozone in nature, humans will suffer a lot of additional disasters, so the evaluation of ozone is a "god-given purifier". Since the "discovery" of ozone, there has been no death from ozone poisoning in the world. The safe concentration of ozone stipulated by the Ministry of Health is 0.1ppm, the industrial health standard is 0.15ppm, and the labor protection department stipulates that no more than 10 hours of work is allowed under the safe concentration. However, the ozone concentration that people can smell is generally 0.02ppm, which is far from the safe concentration. Due to the strong irritation of ozone, people have already avoided it when they feel unwell, so poisoning generally does not occur during use. National Ministry of Health regulations on safe ozone concentrations Shenzhen Dongri Yingneng Technology Co., Ltd. Gas Detector Ozone is an unstable gas, its half-life is only about thirty minutes, do not need to deliberately eliminate it, at room temperature, it will exist at most about thirty minutes, after the reduction to oxygen, if you have to eliminate it, there are several points, one is to let the air flow, dilute the ozone concentration, and finally achieve elimination. The second is heating, when the temperature reaches about 60 degrees Celsius, ozone will be quickly reduced to oxygen. Third, the use of strong oxidizing ozone, the release of other substances that are prone to oxidation reactions, and ozone. (more trouble, high cost, not worth promoting). Ozone gas taste, grass flavor. The human perceived concentration of ozone is 0.02-0.04PPM, while the American standard indicates that when the ozone concentration is 0.1PPM safe concentration, continuous direct contact is allowed for 10 hours.

2020-07-23

National Ministry of Health regulations on safe ozone concentrations

2020-03

Compared with 75% alcohol, 84 disinfectant and anti-virus essentials, this is more recommended.

Now most of the epidemic prevention products are out of stock, or the logistics can not be sent out, the period is special, many people are also risking their lives at work, the shortage of materials and the rising prices of raw materials, it is really not easy to find products that meet the requirements. 84 disinfectant as a commonly used disinfectant, cheap, widely used. However, people who have used 84 know that 84 has a pungent taste, which will be uncomfortable after smelling for a long time, and there will be a burning sensation in direct contact with the skin. Alcohol, the scientific name ethanol, is a flammable, volatile colorless transparent liquid at room temperature and pressure, with a flash point of 13 ℃ and a light blue flame. Its vapor is heavier than air and can be at a lower level.

2020-03-25

Compared with 75% alcohol, 84 disinfectant and anti-virus essentials, this is more recommended.

2020-03

The function, use method and precautions of ultraviolet disinfection lamp

The appearance of the ultraviolet disinfection lamp looks like it has no obvious difference from the ordinary lamp tube, and some will be designed to be similar to the shape of the table lamp according to the actual application place. Some of them are just like ordinary energy-saving lamps, and they do not know enough about ultraviolet disinfection lamps, and many products do not have obvious signs and pay attention to the implementation, so many people use them as ordinary light bulbs, causing some adverse effects. The following article will introduce the relevant knowledge of ultraviolet disinfection lamp, tell you how to correctly use ultraviolet disinfection lamp. 1. The role of ultraviolet disinfection lamp The role of ultraviolet disinfection lamp, one of the main functions is to use it at home

2020-03-25

The function, use method and precautions of ultraviolet disinfection lamp

2020-03

Ozone, purple light, but also "isolation" for 14 days! This is how the bank sanitizes the cash.

A few days ago, the news that an aunt used a microwave oven to disinfect the RMB and the money was burnt caused a heated discussion among netizens. Do you need to disinfect cash at home? Wuhan Shangchao gradually opened up, is it safe to use cash? Can the cash taken out of the bank be used at ease? On March 23, the reporter learned from many sources that the cash bills of the banks have taken layers of killing measures, and the cash returned needs to be disinfected and "isolated" for 14 days to ensure the safe use of the public. Can microwave ovens disinfect cash when banks implement two lines of income and expenditure? Xiao Nian, the business department of Wuhan Branch of Industrial Bank, told reporters that when the RMB is heated and disinfected, the temperature should not exceed 80 degrees Celsius,

2020-03-25

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