Ranking of household appliances radiation: mobile phones and microwave ovens are the highest

When it comes to the safety of home appliances, many people are always a little worried. Not only because some home appliances are prone to explosion if used improperly, but also because home appliances have a common problem that is harmful to health - generating radiation.

Many people's fear of radiation also stems from a lack of real understanding of it. They take it for granted that all radiation is harmful to the body. However, it is understandable to be cautious in everything, but it must be based on comprehensive knowledge and understanding, otherwise it will cause a lot of unnecessary panic and trouble.

Below is the classification of electrical appliance radiation summarized by the Beijing Morning Post. Under the same working intensity, the higher the operating frequency of household appliances, the more obvious the radiation effect on the human body.

1. Ultra-low frequency appliances (rated 50 Hz)

Applicable products: electric shavers, vacuum cleaners, washing machines, electric irons, coffee machines, humidifiers, hair dryers, air conditioners, rice cookers, induction cookers, blenders, electric blankets, fluorescent lamps, refrigerators, etc.

Generally speaking, these electrical appliances will not pose a big threat to the human body, but if you do not pay attention to controlling the frequency of use, the duration of each use, and the method of use, they will still cause a series of health problems. Among them, electric shavers and hair dryers are small appliances that are in close contact with the human body and are frequently used. The shorter the use time, the better. They should be kept as far away from the body as possible when turning on and off the power. Experiments show that the radiation is minimized by keeping a distance of more than 70 cm from vacuum cleaners and more than 1 meter from humidifiers. Electric blankets can cause physical fatigue, weakness, limb pain, etc. if used close to the body for a long time. It is best to disconnect the power supply in time after preheating.

2. Medium frequency household appliances (below 3 MHz, 1 MHz = 1 million Hz)

Corresponding products: TV, computer: The power frequency of TV ranges from several hundred to several thousand Hz, while that of computer is relatively high, especially desktop computer.

In daily use, as long as you keep at least half a meter away from these appliances and their radiation intensity is within a certain standard range, there will not be too much of a problem. The back and sides of the desktop computer host have greater radiation, so it is best not to use it with the case open; the radiation of laptops is concentrated above the keyboard; although the radiation of flat-screen TVs (including LCD and plasma TVs) is much smaller than that of traditional CRT TVs, there are still certain hidden dangers, so it is recommended to watch at least one meter away.

3. Microwave frequency band (30 to 30,000 MHz)

Applicable products: mobile phones, microwave ovens

Microwave ovens operate at frequencies between 915 and 2450 MHz, while cell phones operate at frequencies between 1800 and 2000 MHz.

When using a mobile phone, you should try to speak briefly, answer the call after it is connected, and it is recommended to use headphones more often; the microwave radiation from a microwave oven can disrupt the central nervous system and cause headaches, dizziness, memory loss, insomnia, etc. When using it, the human body must be kept half a meter away from it and do not look directly into it.

Summarize

There is no strong scientific basis for the "harm of electromagnetic radiation" theory, so we don't need to be too anxious. There are all kinds of similar remarks circulating on the Internet, such as: computer radiation causes endocrine disorders, mobile phones on the bedside cause insomnia, and making phone calls can cook eggs, etc., which are out of the question.

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.