The radiation index of electrical appliances is divided into five points. Anyone who is rated as five points is seriously exceeding the standard, so you should pay attention. Samsung and above also belong to the over-standard range, which should also attract your attention; One star is safe and can be used with confidence. There are two levels of electromagnetic radiation, among which the unit of power frequency band is μT, and the radiation above 0.4μT belongs to strong radiation, which is harmful to human body and prone to leukemia after long-term contact. If the radiation is below 0.4μT, it is relatively safe. The unit of radio frequency electromagnetic wave is μW/㎝2.

1. TV

The traditional cathode ray tube TV cathode ray tube was tested first. First, we test it at close range. Within the first half of a meter, the radiation value generated during normal startup is 0. 12μT, 0.30μT during normal viewing, 0.27μT during channel changing, 0.1/μ t during standby, and the radiation value on the side is 0.0 during normal viewing. Because most people watch TV at a distance of about 3 meters, we also made a test on the front 3 meters, and found that the radiation has a great degree of attenuation: the startup, normal viewing, channel changing and standby state are all 0. 12μT, and the test results show that the normal viewing of traditional CRT TV will not cause harm. But to our surprise, the radiation intensity behind it is relatively high, and the radiation value reaches 4.8μT within half a meter after starting the machine, and the radiation through glass and wooden boards has not decreased, even through the wall with a thickness of 10 cm, the radiation value is 0.9 μ t. Please be careful if the back of your TV is facing the bedside of your bedroom. But usually people have different time to rest and watch TV, so it is not a big problem. Look at the plasma TV again, the front is half a meter, the starting, watching and channel changing are 0. 1 1μT, the standby is 0. 12μT, and the side is 0.11μ t; The front is 3 meters, and the TV is 0. 12μT when turned on, 0. 14μT when viewed normally, and 0. 1 1μT when turned on or on standby. According to the test results, the radiation intensity of plasma is less than that of traditional TV. When the rear projection TV is viewed normally, it is 0. 12μT, 0. 19μT and 0. 14μ t near the front, side and back of the fuselage, respectively. First half meter 0.11μ t; 3 meters ahead is 0.1μ t. The most reassuring thing in TV series is LCD TV. No matter whether the front is half a meter or three meters, the instantaneous test results at startup, normal viewing, channel changing and standby state are all 0. 1μT, while the side is only 0. 1 1μT, and basically the radiation intensity has not changed. Test results: Comparing the three kinds of TVs, we can easily find that LCD TV and rear projection TV have the smallest radiation, plasma TV has a little stronger radiation, and CRT TV is bigger, but it is mainly behind TV. It is recommended that you keep a certain distance when watching, especially for children.

2.DVD player and home theater

The popular home theater in recent years, that is, DVD player plus sound system, is closely related to the test results, such as DVD 1.2μT, OK player 1.2μT, power amplifier 1.24μT, small speaker 1.5μT, and large speaker 0.49μ t. People always think that CRT monitors emit a lot of radiation. Is it what everyone thinks? We tested it first. The front of the display is close to 1.00μT, the side of the display is close to 0.55μ t, and the distance from the center of the display is 0.03m, and the radiation is still 0.55μ t. Is this CRT monitor really as big as we thought? To further confirm, we began to look for its safe distance. In this way, when the distance is 0.2 meters, the radiation in front of the display screen will be attenuated to 0.18 μ t, and it seems that the CRT display can be used safely as long as the distance is 0.2 meters. Some viewers asked if it was as big as CRT TV, and it was not big after the test. Some people like to use radiation screensavers, so is it effective? We also specially tested it, and the screensaver radiation only decreased by 10%. Screen saver doesn't seem to have much effect. Radiation index of CRT monitor: ★★ It seems that LCD is really reassuring. Radiation index of LCD: ★ The back is 0.46μT, but we are usually at a certain distance from the back of the host, so the impact is not great. Also, the startup moment and standby state are both 0.17 μ t, and one more thing to say is that if the power connection of the desktop computer is reconnected, the radiation is 0.47μT, so keep a distance when using the desktop computer again. The radiation index of the desktop computer host: ★★★☆☆☆ However, the next test is not very optimistic. Subwoofer speaker, center of operation panel, 0.03m away, 0.63μ t; The center of the right side of the speaker is 0.03m and 5.68μ t away; Radiation is not small, so what is its safe distance? After careful testing, it is found that when the distance is 0.4 meters, its radiation is reduced to 0. 17μT ... So the subwoofer speaker has serious radiation, and it should be kept at least half a meter away when using it. Radiation index of subwoofer speaker: ★★★★☆ Finally, notebook computer, 0. 1m 0. 13μT in front of display screen, 0.3m 0. 10μT in front of display screen, 0.3m 0. 13μT on display screen side and 0.13μ t above keyboard. The test results show that the radiation of notebook keyboard is slightly stronger and the power adapter is the largest. Notebook radiation index: ★☆☆☆☆☆ Tip: LCD screen radiation is very small, CRT monitor is slightly larger, but they are all within the safe range; The radiation on the back and side of the host is large, so it is strongly recommended that you do not open the chassis for the convenience of heat dissipation. The subwoofer has serious radiation, so keep a distance of at least half a meter when using it. The radiation of the notebook is concentrated above the keyboard, so keep a distance from the power adapter when using the notebook. Oh, by the way, it is said that this computer and notebook don't radiate much, but the photoelectric mouse turns red and blue, which is scary. Is there radiation? Are the radiation of wireless mouse and keyboard less than that of ordinary ones? And that WLAN transmitter! There are digital devices, digital cameras, MP3 and MP4. To tell you the truth, this battery-powered DC appliance is the safest. Ordinary mouse: 0. 1μT Ordinary keyboard: 0. 1 1μT Wireless mouse: 0.53μT (above the mouse) Wireless keyboard: 0.96μT (above the keyboard) Wireless gateway: 0. 15μT (above the gateway) Printer. Adapter: 0. 1 1μT MP4 power adapter: 0. 16μT radiation index of power adapter for ordinary mouse, keyboard, wireless gateway, printer, digital camera and MP4: ★☆☆☆; Radiation index of wireless mouse and keyboard: ★★★☆☆ Tip: Ordinary keyboard, mouse, wireless gateway, printer, digital camera and MP4 power supply have little radiation, so you can use them safely. However, wireless keyboards and wireless mice radiate a lot.

3. Refrigeration and heating equipment, electric blanket

The air conditioner in the bedroom has the longest time and the largest power. Fortunately, its radiation is only 0. 1μT at the moment of switching on and off and in normal use, and the radiation value does not change much in various modes such as mute and sleep. In winter, some families like to use small electric heaters, heaters and other heating appliances, but the radiation is not small. Let's look at the infrared electric heater first. Test results of distance 1. 8μT means that the radiation above is 1.8 μ t, and the side is 5.4μT, so the radiation intensity is very high. We tested at a distance of 1mm, and the radiation decreased to 0.65438. The test result of heater close contact is 9. 3μT, that is, 0.34μT on the front and 0.25μT on the back at half a meter. However, the most reassuring thing is the Youting electric heater, which is 0.19 μ t in the center when it is used in high grade; The center of the side is 0. 18μT when it is near, and 0. 18μT when it is half a meter. When high-grade electric blanket is used, it is 0.7 1μT near the power supply, 1. 1.5μT at the left corner of the opposite side of the power supply, 0.7 1μT at the right corner of the opposite side of the power supply, and 0.55 μ t at the center of the electric blanket. At low gear, the left corner of the reverse side of the power supply is 0.70μT, and the right corner of the reverse side of the power supply is 0.49μT t. It seems that the radiation of the electric blanket is really not small. Another big radiation source in the bedroom is the electric fan, with low-grade wind of 2.6μT and high-grade wind of 0.9 μ t. However, when it exceeds 2m, the radiation decays to 0. 1 1 μ t, suggesting that the air conditioner has small radiation and can be used safely. However, infrared tube electric heaters, heaters and electric fans radiate a lot, so it is recommended to keep a distance of at least one meter when using them. Electric blankets also radiate a lot, so it is recommended to use them less. Humidifier, air purifier In the test, we found that this kind of fan humidifier has the largest radiation. The test result close to it is 49μT, the low-grade use is 15μT, and the high-grade use is 32μT, but when it exceeds 1m, it drops to 0.52 μ t. The test result of the ultrasonic spray humidifier is 9μT and 0.22μT outside 1 meter. The test result of the air purifier near it is 0.35μT, which drops to 0. 12μT within the range of 0.5m It is suggested that humidifiers and air purifiers should not be too close to human body. Humidifier radiation index: ★★★★★ Air purifier radiation index: ★★★★☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆97 It is suggested that the use time of induction cooker and electric hot pot should not be too long, and a certain distance should be kept when using. The microwave oven radiates the most when it is started. It is recommended not to get too close when cooking in the microwave oven. Radiation index: ★★★★★★★★★★ Refrigerator range hood ozone disinfection cabinet ozone machine electric cooker electric baking pan electric kettle juicer soya-bean milk machine refrigerator: 0. 13μT outside the door (open the door) 0. 16μT range hood: 0. 1 m front, 0.38μT front, 0. (0. 1 m) 0.30μT tip: refrigerators, ozone disinfection cabinet and rice cookers have little radiation, so they can be safely used; The radiation of electric baking pans and range hoods is slightly larger, which belongs to the early warning range. Be careful not to stick them too close when using. Ozone machine, soymilk machine and juicer all have relatively high radiation, so it is best not to let children use them. Vacuum cleaner, electric iron, hair dryer, power terminal board We have tested this big vacuum cleaner before, and the radiation under normal use is 15μT, but it is not small; This small hand-held vacuum cleaner is still very popular now. How much radiation does it have? We also did the test, and the distance at the handle was 0.03 m: 6.64 μ t; Left center: 4.22 μ t; But if you use it like this, its radiation will decay to a safe range, and the back is 0.2m: 0. 15μT t ... Radiation index of large vacuum cleaner: ★★★★★★ Radiation index of small vacuum cleaner: ★★★★☆ The radiation of electric iron is also quite large. We did another detailed test and found that the heating radiation of the electric iron would increase. In the heated state, at the handle, it is1.22μ t; However, under the condition of constant temperature, the radiation decays to 0. 12 μ t, so if ironing clothes, it is best to heat them once and then continue heating them later. Never iron clothes while heating. Radiation index of electric iron: ★★★☆ Hair dryer is also a major radiation source we found. In the previous test, the low match was 4.20μT and the high match was10.00μ t; After that, the different parts of the hair dryer were tested in detail under the condition of hot air, and the handle was 0.03 m,10.95 μ t; Air outlet, 7. 16μT, it seems that the hair dryer is really going to be used less. Radiation index of hair dryer: ★★★★★★★ ★ Another thing to remind everyone is that the power terminal board is only 0. 1 1μT if it is not connected with electrical equipment. However, when connecting high-power electrical equipment, when the distance is 0.03m, its radiation can be 1.25μT ... which will attract your attention. Radiation index of power terminal board (in use): ★★★★☆ Text: The radiation of vacuum cleaner and hair dryer is large, and the radiation of electric iron is not small. Keep away from children when using, and the radiation of power terminal board should also attract your attention, and don't put it on the bedside. Electric footbath, treadmill, fat exercise machine This is a very popular electric footbath now. Let's see how much radiation it has. 0.03m away from the power line, 2.20μT t t. Radiation index of electric footbath: ★★★★☆☆☆ Some people like to exercise at home. How much radiation does this treadmill have? When the treadmill works, the panel is 0. 15μT, the front of the conveyor belt is 3.90μT, and the tail of the conveyor belt is 0. 1 1μ t ... The radiation index of the treadmill is ★☆☆☆☆☆☆☆☆☆☆☆☆☆973 Let's see how much radiation the fat exercise machine has. Fat body-building machine, side, high gear, 0.03 m, 5.48 μ t. Radiation index of fat body-building machine: ★★★★★★ ★ Note: the electric footbath and fat body-building machine have large radiation, and the front of the conveyor belt of the treadmill has large radiation. What kind of spectrograph is not too radioactive? In fact, as long as it is infrared, it is not within the scope of our test and does not belong to electromagnetic radiation. So, you can use it with confidence.

4. lamps and lanterns

Let's start with the desk lamp. This is the desk lamp in the master bedroom, and its radiation value is 0.17μ t. This is an energy-saving eye-protection desk lamp for children, and its radiation value is also 0.11μ t. The old desk lamp is used in the study, and its radiation value is 0.1μ t. The test result of fluorescent lamp is: master bedroom. It can be avoided without spending a penny. One of the most effective ways is to keep a distance, and it must be a safe distance of more than 3 meters. If you are at home, make reasonable arrangements, because experts suggest that it is best not to wear protective clothing. The human body itself is a big conductor, and wearing it can only introduce shielded radiation into the human body. Moreover, there is no clear material standard for protective clothing, and the price is uneven. Therefore, it is recommended that you do not trust the role of protective clothing.

External protection of the body

1. Face shield generates static electricity, which is the easiest to absorb dust. Face to face for a long time is more likely to lead to spots and wrinkles. Therefore, before surfing the Internet, you may wish to apply skin care lotion and add a layer of calomel to slightly increase skin resistance.

1, after thoroughly cleansing the face and surfing the Internet, the first task is to clean the skin. Wash your face thoroughly with warm water and cleansing liquid, wash away all electrostatically adsorbed dirt, and apply mild skin care products. Long-term use can reduce injuries, moisturize and beautify. This is really a little trick and a big role for women who surf the Internet.

2, maintain bright eyes, usually prepare a bottle of eye drops in case of emergency. It is also good to apply cucumber slices, potato chips or frozen milk and herbal tea after surfing the Internet. Its method: slice cucumber or potato, apply it on double eyelids, and close your eyes for a few minutes; Or use gauze to soak frozen milk herbal tea and apply it to eyes, which can relieve eye fatigue and nourish skin around eyes.

Increasing nutrition is very important for people who often surf the Internet. Vitamin B group is very beneficial to mental workers. If you go to bed late, the quality of your sleep is not good. You should eat more animal livers and fresh fruits and vegetables, which are rich in vitamin B group. Meat, fish and dairy products increase memory; Chocolate, wheat doughnuts, seafood and dried fruits can enhance the coordination of the nervous system and are the best snacks when surfing the Internet. In addition, drinking Lycium barbarum juice and carrot juice from time to time also has obvious effects on eye protection and skin care. If you care about your appearance, quit those carbonated drinks and drink carrot juice or other fresh juice instead.

4, often do gymnastics online for a long time, you may feel dizzy, stiff fingers, backache, and even edema and varicose veins of the lower limbs. Therefore, we should do gymnastics at ordinary times to maintain vigorous energy, such as lying flat on the bed before going to bed, relaxing the whole body, and putting our head back below the edge of the bed after use to alleviate the lack of blood supply and oxygen supply to the brain; Raise your feet and lie flat on the bed or sofa to reduce foot edema, help blood return and prevent varicose veins of lower limbs; Stretch from time to time during surfing the internet, stretch your muscles or lean on a chair, push your hands back, and stretch your tense and tired waist muscles; Shaking your fingers is the easiest way to completely relax your fingers. Remember, this kind of gymnastics does not exercise much, but it is far more effective than sleeping late. 2. Eye care for eye problems. Eye massage can improve blood circulation and help to eliminate dark circles, but don't push too hard, otherwise the eye muscles will sag. Use eye gel containing chamomile, green tea and cucumber once a week. Bags under the eyes do harm the appearance, and once they are formed, they are difficult to eliminate. Long-term computer work will make eyes overtired, blood vessels dilate and eye muscles swell. At this time, you can close your eyes and apply a cotton pad to your eyes with frozen aloe juice, and lie still for a few minutes to improve the swelling. Don't ignore this edema phenomenon, which eventually accumulates into serious bags under the eyes, so we have to solve it surgically. Long-term use of eye fatigue, fine lines quickly climb to the eyes, you can tighten the water every day (eye-specific). Apply the product to eyes with cotton, or use eye mask and stick it once a day to quickly eliminate fine lines. You can install a screensaver, or put more cream on your computer to reduce radiation. If your monitor is relatively new, you should support a refresh rate of 85Hz, so that the displayed image will not flicker, shake or be unclear. This setting is usually enough. If the older one may only support 75Hz, it is also possible that the effect of 70Hz is slightly better than 75Hz, depending on the quality of your monitor. The resolution usually uses the recommended values of 1024*768 and 17 inch monitors. If you do word work and your eyesight is not very good, you can adjust it to 800 * 600; If you want to make a Cad drawing, you'd better use 1024*768 to set the taskbar to hide automatically. If you adjust the refresh frequency of the monitor to the above values respectively, you will see different display effects after careful observation, which may not be very different, which is related to your own eyes. Some people are sensitive to the flicker of light, while others feel nothing. In addition: 1, it is recommended to drink more green tea, which can reduce the radiation hazard of the monitor. 2. Can you consider replacing CRT monitor with LCD to protect your eyes? 3. You can buy some small cacti and put them next to the radiation source to help us absorb some radiation; Using sunscreen every day can help the skin create a good environment, isolate dirty air and make-up; There is also eating some seafood like kelp and spirulina.

Internal protection of the body

In terms of internal adjustment, try green tea and chrysanthemum tea, two weakly alkaline teas. Everyone knows that green tea not only has anti-cancer effect, but also can scavenge free radicals in the body and has anti-radiation effect. Drinking some green tea every day is very beneficial to your health. Chrysanthemum tea is a kind of fragrant tea. Its beauty lies in that when your eyes are tired, you can fumigate your eyes with the hot air of chrysanthemum tea for 1 minute, and your eyes will feel very comfortable immediately. You might as well try. On the issue of internal adjustment, we should usually eat more foods that help to resist oxidation, such as foods containing vitamin A, vitamin C and vitamin E. Yang Fei often puts A, C and E together because they are really super antioxidant combinations! Rich vitamin C can be taken from various vegetables and fruits, especially fruits, because it is water-soluble; Both A and E are fat-soluble, especially vitamin A, which is found in all kinds of yellow vegetables. It is recommended to fry in oil. Especially carrots, but I found that many friends don't like them. But in fact, carrots are rich in carotene, also known as beta carotene. Only by frying in oil can you really release carotene, otherwise you will only eat carrot precursors raw! Carotene can not only help our skin to be refined, moisturized and hydrated, but also help to "naturally control oil". Balance water and oil secretion and make our eyes bright. As we all know, there are two kinds of facial skin: sweat glands and sebaceous glands, while the skin around the eyes has only sweat glands and few sebaceous glands, which is one reason why the skin around the eyes will age before other facial skin. With so much vitamin A, our water and oil will be balanced and our skin will be tightened. Let's talk about vitamin E, also called fertility wine, which has many uses. For people with computer skin, it is very effective to eat some natural vitamin E, such as animal viscera and various beans, to help protect our cell wall. Thereby enhancing the antioxidant capacity of the skin. Usually pay attention to drink more water every day, preferably 2500 ml. For example, 1 bottle of mineral water is 550ML, which is about 4 bottles. Keep the daily urine volume 1000 ml. Eat more weakly alkaline foods such as vegetables and fruits, keep your body weakly alkaline, and eat less acidic foods, so that your skin will gradually improve.

In view of the fact that the electromagnetic radiation generated by contact with electrical products in daily life may be harmful to health, the China Consumers Association issued a warning on August 6 that electromagnetic radiation must be prevented in life. Experts remind consumers:

● Don't use household appliances too intensively or often together to avoid exposing yourself to the danger of excessive radiation. In particular, televisions, computers and refrigerators should not be concentrated in the bedroom.

● Various household appliances, office equipment, mobile phones, etc. Should be avoided for a long time. When electrical appliances, such as televisions and computers, need to be used for a long time, attention should be paid to leaving every hour, and the way of looking far away or closing your eyes should be adopted to reduce the fatigue of eyes and the influence of radiation.

● When the electrical appliance is suspended, it is best not to let it stand idly by, because it can generate weak electromagnetic field at this time and radiation accumulation for a long time.

● Keep a safe distance when using various electrical appliances. For example, the distance from the eyes to the TV screen is generally about 5 times the width of the screen; Leave one meter away after the microwave oven is turned on, and pregnant women and children should stay away from the microwave oven as far as possible; When using a mobile phone, the distance between the head and the antenna of the mobile phone should be as far as possible, and it is best to use a separate earphone and microphone to answer the phone.

● People living and working near high-voltage lines, radar stations, TV stations and electromagnetic wave transmission towers, patients wearing pacemakers and people living in modern electrical automation environment, especially pregnant women, children and the elderly with weak resistance, should be equipped with shielding protective clothing to block electromagnetic radiation if possible.

● TV, computer and other electrical equipment with display screen can be equipped with electromagnetic radiation protection screen, and users can also wear radiation protection glasses. The radiation generated by the display screen may cause dry skin, accelerate skin aging and even lead to skin cancer, so wash your face in time after use.

● The electromagnetic radiation released at the moment when the mobile phone is switched on is the largest. So it's best to ring the phone for a second or two or the phone rings twice before answering the phone.

● Eat foods rich in vitamins A, C and protein, such as carrots, tomatoes, kelp, lean meat, animal liver, etc., to strengthen the body's ability to resist electromagnetic radiation.