Electric blankets have a period of use, and should be eliminated after more than six years

  According to the “Regulations on the Use of Electric Blankets, Heating Pads and Similar Flexible Heating Appliances” issued by the country in early 2008, no matter what brand of electric blankets, its service life is only 6 years. Because the heating wire of the electric blanket protects the insulation layer, it will begin to age and crack after 6 years of use, and its insulation performance and compression will be greatly reduced. If the service life is too long, it is prone to safety accidents. To this end, the Municipal Consumer Protection Committee reminded consumers to check whether their electric blankets have been used for more than 6 years. If it has been exceeded, it is better to eliminate it as soon as possible.

   In addition, the Consumer Protection Committee also reminds consumers that they should pay attention to the following points when purchasing and using electric blankets:

   1. Go to a regular and reputable mall (shop) to buy it. When purchasing, you should carefully check whether the product has the factory name, factory address, certificate and instruction manual, and check whether the carpet body is fine and flat, whether it is damaged, whether the heating wire is arranged in a regular and orderly manner, whether there is overlap or knotting, etc. Don’t be greedy for cheap and buy stall goods and low-quality electric blankets.

  2. Please read the product manual carefully before use. Understand the product characteristics, learn how to use it, grasp the precautions, and power-on test to check whether the performance is good, whether the heating is uniform, whether there is any peculiar smell and leakage phenomenon, if there is a problem, you should negotiate with the seller in time.

  3. In order to prevent accidents, the electric blanket should not be left for a long time after the electric blanket is energized, heavy objects should not be piled on the electric blanket, and the hot water bottle should not be used at the same time on the blanket body, and the blanket body should not be wetted. Moisture, especially to prevent children and patients from wetting the bed.

  4. The electric blanket used for soft beds such as sofa beds and steel wire beds must be folding electric blankets. Generally, linear electric blankets are sold in the market. This kind of electric blankets are only suitable for use on hard beds and cannot be used on soft beds. Otherwise, the heating elements will be easily broken and accidents will occur.

Demystifying the air purifier: can it remove PM2.5?

  Experts interviewed:

  National Household Appliance Quality SupervisionCheckCenter ComprehensiveMinister of Inspection DepartmentLu Jianguo

  National Household Appliance Quality SupervisionTest Center EngineerSong Li strong

   Song Guangsheng, Director of the National Indoor Environment and Indoor Environmental Product Quality Supervision and Inspection Center

Is    easy to use? Audio-visual publicity is not reliable

  As people pay more attention to the home environment, air purifiers are sought after. This new type of home appliance claims to be able to absorb, decompose or transform various air pollutants, including formaldehyde, peculiar smell, dust, etc., to improve air cleanliness and become the home appliance of choice for many people. However, the variety of purifiers on the market is dazzling. How to “see flowers in the fog”? In this regard, a reporter from “Life Times” conducted an investigation and interview.

   On the afternoon of February 20, our reporter came to Dazhong Electrical Appliances Mall near Dawang Road, Chaoyang District, Beijing, and just approached a store on the second floor that mainly sells air purifier products. The sales staff He enthusiastically asked: “What is the size of your house? Has it just been renovated?” Then he introduced the purifier functions that cost from several hundred to several thousand yuan: “Look at this, mark it ‘PM’ mainly removes PM2.5, the effective area is 60 square meters; and this, not only can remove PM2.5, but also remove formaldehyde, benzene, and odor. The effective area is 100 square meters. It uses Thanks to our patented technology, it is a filter element of dozens of dollars that needs to be replaced regularly. The most expensive platinum block components can last up to 15 years. As long as they are cleaned and exposed to the sun regularly, it is particularly economical.”

   The reporter looked at the manual of an air purifier priced at about 3,000 yuan, and it stated that the product adopts a high-efficiency particulate air filter (HEPA), which can effectively purify particles as small as 0.3 microns in diameter. The purification efficiency of particles and various bacterial clusters reaches more than 99.9%. When reporters questioned the effect of this purification, the sales staff patted their chests without hesitation to ensure “no problem.” “Can we still talk nonsense? Consumers now know to find a testing company, if they buy it back, and the testing and purification effect is unqualified, they can’t file a lawsuit with us. That would be hundreds of thousands of compensation.” p>

   Facing such a recommendation, probably many people will be tempted. Is this really true?

   home appliance expert Song Liqiang told our reporter that according to the current national standards, the test is carried out with particles with a particle diameter of 0.3 microns. Therefore, if the business advertises that it can effectively filter particles above 0.3 microns, or even It is also possible to filter out 100% particles of this size.

Lu Jianguo, a home appliance expert, said that the current air purification technology is relatively mature, and as long as the equipment is good enough, it can indeed achieve a sterilization effect. But he emphasized: “When it comes to purification efficiency, there must be prerequisites. For example, if a business advertises that its purification efficiency is as high as 99%, or even 99.99%, it should also explain under what conditions, how much space, and how long it will run. Achieved.” If you can’t explain it, you may be questioned by consumers, or even false propaganda. Lu Jianguo suggested that when consumers buy air purifiers, they should ask for product test reports from merchants and check the legality and authenticity of their testing agencies on the Internet.

How to use   ? Try to stay away from people and walls

   1. How to choose an air purifier for rooms of different sizes?

   home appliance expert Song Liqiang: According to the current national standard, all products must be marked with “clean air volume”. Clean air volume=2.3×room volume/time. In other words, an air purifier with a clean air volume of 100 can only be used in a room with a volume of 42 cubic meters if it wants to purify 90% of the inhalable particulate matter within an hour. Assuming that the height of the room is 3 meters, the usable area is 14 square meters. However, there are also many products that directly indicate the coverage area. Since the purifier is easy to move in each room, you only need to choose the product that meets the largest room area in your home.

  2. Do I need to open the window for ventilation when using the purifier?

  Indoor environmental expert Song Guangsheng: When using air purifiers under severe air pollution or indoor environmental pollution, it is best to close the doors and windows to ensure a good purification effect. If the atmospheric air quality is good, there is no need to turn on the air purifier for a long time, and ventilation should be the first choice. The purifier and humidifier can be used in combination in summer and winter, and the effect is better.

  3. How should the air purifier be placed?

Bacteria multiply 5 times when wearing headphones for 1 hour

  In-ear headphones are more likely to contain bacteria than earbuds. After wearing earphones for one hour, the bacteria multiplied by nearly 5 times than before; while earphones were worn for one hour, the bacteria multiplied by nearly three times.

   Recently, Mr. Zhao, a citizen of Nanchang, called this newspaper and said that the earphones circulating on the Internet are a breeding ground for bacteria. Once the earphones are worn, the air in the ears is difficult to circulate and the temperature rises. High, the bacteria on the surface of the earplugs will multiply quickly, which is not conducive to ear health. Mr. Zhao wants to know, is this rumor true? To this end, our reporter conducted some experiments.

  Most citizens have never cleaned their headphones

   Before the experiment, reporters conducted random interviews with citizens on the streets of Nanchang. Citizen Ms. Li told reporters that she likes listening to music with headphones and uses headphones very frequently, but she has never cleaned the headphones. “There shouldn’t be many bacteria, right?”

  Citizen Mr. Zhang also said that he has never cleaned the earplugs. “Anyway, the earplugs are for his own use. They should not be too dirty, so I don’t think it is necessary.” However, Mr. Zhang also raised a question: “If I want to clean it, how should I clean it? Is it better? Use clean water or a special disinfectant?”

   Similar questions exist among most citizens interviewed randomly by reporters. Only a few citizens said that if they see dirt on the earphones, they will wipe them with paper towels or wet wipes, but they have no habit of cleaning them specifically.

  In-ear headphones are more likely to contain bacteria than earbud headphones

   Experimental props: three pairs of used headphones, single earphone type is No. 1, double The ear-in-ear type is No. 2 and the binaural earplug type is No. 3.

  Experimental tools: sterile saline, sterile straws, sterile petri dishes, medical sterilized cotton swabs, etc.

  Experimental staff: Ying Yan, Department of Laboratory Medicine, Xihu District Center for Disease Control and Prevention, Nanchang (Note: The results of this experiment are only responsible for this experiment)

   In-ear headphones can enter the external auditory canal

   The reporter sent Mr. Zhao’s three pairs of headphones In the examination department of the Xihu District Center for Disease Control and Prevention, two of the earphones are stuck in the inner helix and will not penetrate into the external auditory canal when used; while the other in-ear earphones can be directly inserted into the external auditory canal and contact the skin on the ear canal. Which kind of headset hides more bacteria? There is no proof in the mouth, the experiment is the proof.

  The experimenter Ying Yan first disinfected the No. 1 earphone, then used a cotton swab to smear and sample the earphone, put the cotton swab into the test tube, and inject 10ml of 0.9% sterile into the test tube Physiological saline, and shake, so that the bacteria on the swab can be evenly mixed in the saline. After that, the experimenter took out 1 ml of the solution from the test tube, poured it on a sterile plate, and added the culture medium.

   As for the No. 2 and No. 3 earphones, before the experiment started, the experimenter wore the left ear of the two earphones for an hour, while the right ear was kept intact. After that, the experimenter also sampled the No. 2 and No. 3 earphones. After all the 3 pairs of earphones were sampled, the experimenter put 5 plates into the 36°C incubator for bacterial culture.

  Bacteria multiplied nearly 5 times after wearing it for 1 hour

  After 48 hours of cultivation, the reporter saw that 4 out of 5 plates had white spots. The experimenter explained that this is a colony formed after 48 hours of cultivation. There are as many white spots as there are colonies. The reporter found that the only thing with no white spots was the sampling on the headphones after disinfection.

After   , the experimenter calculated that the No. 1 earphone was aseptic; the left ear of the No. 2 earphone was a sample after 1 hour of wearing, with 120 colonies, and the right ear was an untreated earphone with 25 colonies; The left ear of the No. 3 earphone was also a sample after 1 hour of wearing, with 25 colonies, while the number of colonies in the right ear without treatment was 9. It can be seen that in-ear headphones are more likely to harbor bacteria than earbuds. After wearing earphones for one hour, the bacteria multiplied by nearly 5 times than before; while earphones were worn for one hour, the bacteria multiplied by nearly three times.

  The experimenter Ying Yan said that bacteria generally reproduce asexually by a simple two-division method, and the division time is generally 20-30 minutes. Therefore, from this perspective, if you wear the headset for one hour, the bacteria will multiply by up to 5 times. If you don’t wash it all year round, it will accelerate the bacteria’s reproduction.

Ear health starts with choosing a good earphone

   Everyone has different opinions on the definition of a good headset. To evaluate whether a headset is good or not, most people agree that the higher the price, the better the quality of the headset. The evaluation items include shape, workmanship, wearing comfort, sound quality, etc., and sound quality is a very broad concept, including analysis Degree, tri-frequency, dynamic range, sound field, etc. Generally speaking, a good headset can be used for the type of music you like, the sound quality meets expectations, the quality is reliable, the wearer is comfortable, and the price is right.

   The editor agrees more with this view: “A high-quality headset should use advanced science and technology to achieve sound quality under the premise of protecting ear health. The biggest optimization of ”

   Especially for friends who often use earphones, a good earphone becomes more important. If you are an MP3 family or an enthusiast of various portable music players, it is best to choose a high-end headset, which will not only allow you to enjoy a more perfect sound quality, but also ensure your hearing and ear health Will not be harmed.

  It is imperative to pay attention to ear health

   The United Nations World Health Organization has recently passed a survey of 500 people in 14 cities in China. Among young people and call center staff, at least 30% have varying degrees of hearing loss. In fact, when most people listen to music with headphones, they tend to adjust the volume to 50 to 60 decibels, while the volume of MP3 players often reaches 100 decibels. For this reason, the European Union launched a “hearing protection campaign” in 2008. “The manufacturers of MP3 players are required to limit the maximum volume to 85 decibels. This is because medical studies have shown that controlling the volume at 85 decibels or below will generally not damage or destroy the hair cells in the cochlea, and 100 decibels have already exceeded 100 decibels. International health and safety standards place restrictions on the volume of the workplace.

   eliminate high decibels

  Tips: According to the World Health Organization’s deafness classification standards:

  26~40dB; mild deafness

  41~55dB: Moderate Deafness

  56~70dB: Moderate to Severe Deafness

  71~90dB: Severe Deafness

  Poor sound quality affects ear health

   In addition to excessive volume, the damage of poor sound quality to ear health cannot be underestimated. In order for the ear to hear sound, natural sound waves must first be transmitted to the tympanic membrane through the auricle and external auditory canal, causing the tympanic membrane to vibrate. The vibration is transmitted to the cochlea of ​​the inner ear. The cochlea is filled with fluid and connected to the hair cells that sense the frequency of sound. The hair cells that sense high-frequency signals are at the bottom of the cochlea, and the hair cells that sense low-frequency signals are at the top of the cochlea. The hair cells can convert the mechanical energy signal of this sound wave vibration into electrical signals, pass and generate nerve impulses, and send sound information along the auditory nerve. Send to the brain, make people feel the sound, and finally complete the process of “listening”

  Inferior headphones destroy our hearing

   Expert tips, deliberately increase the high frequency range Or low-frequency sound signals will over-stimulate the corresponding hair cells, and prolonged stimulation will cause the hair cells to be damaged and die. When the hair cell responsible for listening to a certain frequency band is damaged, the sound of this frequency band will be more difficult to hear. The early performance is generally inattention and slight hearing loss, which is commonly known as “the back of the ear”. It will drop severely. Therefore, this places high requirements on the quality of the earphone unit. Low-end products often have “broken sound” and “cracked sound” due to the limited playback capability of the unit. The impact of these noises on ear health is quite obvious.

  noise stimulates ear cells

  The hearing damage caused by inferior low-end products is not a deliberate amplification of a certain frequency band, but is easy to appear during playback The signal is unstable, the sound is loud and small, and the volume may suddenly increase, which can easily cause explosive hearing loss (blast deafness).

  Boy against inferior headphone products

   However, many people don’t understand this, and often think that as long as the portable music player is a “brand name”, headphones” “Original” is fine. If you don’t have headphones, it doesn’t matter if you buy a general brand. There is even a ridiculous view that as long as the volume is adjusted to a large enough level, the music played by any MP3 will produce “high fidelity”. As a result, the volume is unknowingly adjusted higher and higher. Little does it know that inferior headphones are actually destroying hearing a little bit, and even causing irreversible hearing impairment.

   protect ears from the details

Electronic sphygmomanometer mercury sphygmomanometer which is good

  Manual is more accurate than automatic cuff than wrist type

   There are mercury sphygmomanometers and electronic sphygmomanometers common in the market. . Mercury sphygmomanometers are common in hospitals, and home sphygmomanometers are often electronic. Wu Yang said that although electronic sphygmomanometers have entered the homes of ordinary people, hospitals still use mercury sphygmomanometers. The reason is not that hospitals “cannot afford” electronic sphygmomanometers, but because the measurement results of mercury sphygmomanometers are more accurate.

  Mercury sphygmomanometer requires the use of a stethoscope to measure the systolic blood pressure and diastolic blood pressure as judged by others. Therefore, many patients or family members find the process of mercury sphygmomanometer to measure blood pressure complicated. Wu Yang told reporters that, in fact, the mercury sphygmomanometer looks complicated, but in fact it is very easy. If there are hypertensive patients in the family who need to monitor their blood pressure for a long time, family members may wish to learn how to use a mercury sphygmomanometer.

   Compared with a mercury sphygmomanometer, the electronic sphygmomanometer is easy to operate. It can measure blood pressure by yourself without the help of others to tie the cuff and use the stethoscope to read. Therefore, the electronic sphygmomanometer has become the main tool for monitoring blood pressure at home. Electronic sphygmomanometers are divided into arm type and wrist type. Generally, the measurement result of the arm type is more accurate and the error is smaller than that of the wrist type.

  Electronic sphygmomanometer: reduce random errors several times

   measures the quality of an electronic sphygmomanometer, depending on whether the measurement results have random errors and system error.

   In the similar time, the blood pressure measured by the same instrument may be different, which is called random error. Random error is an important basis for reflecting the quality of electronic sphygmomanometers. The difference between the blood pressure values ​​of a good instrument after several consecutive measurements will not be too large. If the results are very different, it means that the random error of the instrument is too large and it is not suitable to buy. Wu Yang told reporters that in order to reduce random errors, people can measure blood pressure several times at home, write down the value and take the average value. The average value will be closer to the true blood pressure value.

   In addition to random errors, electronic sphygmomanometers may also have systematic errors. System error means that the blood pressure value measured by a sphygmomanometer is higher or lower than the accurate value. For example, the actual blood pressure of someone at a certain time is 120/80mmHg, but the results of repeated measurements with the instrument are all 125/85mmHg, indicating that this instrument has a systematic error of 5mmHg. Regarding the systematic error, the common people cannot see it at the time of purchase. You can take the blood pressure monitor to the hospital and compare it with the blood pressure value measured by the hospital to see if there is any systematic error.

  Do not fluctuate blood pressuretensionAdjust medicine to findDoctor

The reporter learned that many hypertensive patients have misunderstandings about blood pressure measurement: when monitoring their blood pressure at home, they occasionally find an increase in blood pressure, and they are very nervous. Some people immediately increase their blood pressure medication, and some even immediately go to the hospital emergency department. In fact, it is very common for human blood pressure values ​​to fluctuate every day. If the blood pressure value is found to be too high once, you should measure it several times first to eliminate the random errors that may exist in the instrument. Do not worry too much if the measured value is high for many times, it may be caused by factors such as emotions and poor rest. As long as it is not too high, such as more than 180mmHg or accompanied by headaches and other symptoms, you should continue to observe for about a week. If the blood pressure is too high and still does not improve, you need to consult a doctor.

   When blood pressure fluctuates, it is best for patients not to increase or adjust drugs without authorization. Patients with hypertension must follow the doctor’s advice when adjusting drugs, because patients often do not know when antihypertensive drugs take effect and when they are effective The biggest, the experience from patients and their own speculations are often unreliable. Wu Yang explained, for example, that many hypertensive patients take antihypertensive drugs when they need to be in bed together, because the blood pressure rises quickly after getting up because the blood pressure hormones in the body will be rapidly secreted after getting up; but it takes time for the drugs to take effect. If the medicine that should be taken at 6 o’clock in the morning is taken at 8 o’clock, at 8 o’clock, the blood pressure may have reached the peak of the whole day. At this time, the taken medicine cannot be absorbed immediately, and it may not take effect until 10 o’clock. Then take the medicine and lower it. The purpose of the pressure does not match. Many patients do not understand these principles and put the medicines that need to be taken in the morning at night, which causes the time to be misplaced and falls into a misunderstanding of taking the medicine.

  Do not stop the drug on the day of the follow-up visit

Experts suggest that four daily necessities can be used as massagers


   Take two pairs of daily necessities chopsticks with square ribs and wash the chopsticks, rub both hands repeatedly, except for the palms of the hands, but also Should pay attention to rubbing the big thenar at the base of the thumb, rubbing for 5 minutes each time, 2 times a day. Rubbing chopsticks can massage acupuncture points on both hands, promote blood circulation, stimulate internal organs, and enhance the body’s immunity.

   There are many reflex areas and treatment points on the hands, which are the gathering points of nerves. Clinical practice has proved that acupuncture points on both hands can treat a variety of diseases, such as upper limb numbness, colds, and indigestion. As long as the acupoints of the hands are stimulated and massaged accurately and continuously, and persisted for a long time, the internal organs can be continuously benignly stimulated and their functions will be gradually strengthened.


   The five toothpicks are tied together with rubber bands, and the head is plum-shaped, so it is called “plum-shaped pile”. Holding plum blossom piles with thumb and index finger to stimulate acupuncture points of the human body can treat a variety of pains. Acute pain can be stimulated with the pointed tip of a toothpick, and blunt tip can be used for chronic pain. The hand plum blossom pile has the characteristics of rapid pain relief, simple tools, no side effects, and easy to learn. It is suitable for self-massage or treatment for family members.

   Repeatedly stimulate the heart acupoints of the hand (the palm side of the middle finger, the midpoint of the horizontal stripes of the first knuckle) and the Daling acupoint (the midpoint of the horizontal stripes of the wrist) with plum piles. Skin, let the strength slowly penetrate into the acupoints, 2 minutes per acupoint, once a day. Generally, the headache is significantly relieved after two days of stimulation.

  beverage bottle

   Take a plastic beverage bottle with no edges and fill it with water at room temperature, which can be used as a massage tool. According to different needs, you can also put ice or hot water in the bottle for cold or hot compress treatment.

   Method 1: Sit on a chair, place the bottle on the bottom of your left foot and massage it back and forth, then change your right foot after 2 minutes.

   Method 2: Use the bottle to roll up the inside of the leg from the ankle to the bottom of the knee, and massage the two legs alternately for 3 minutes. Then use the bottle to pat gently along the outside of the calf from the ankle to the knee, alternating with both legs, and pat for 3 minutes.

   Method 3: Place the bottle horizontally on the back of the knee, and use the force of the knee to stimulate the acupuncture points in the popliteal fossa. The two legs alternate for 2 minutes each time, once a day.

   By stimulating the acupoints on the soles of the feet, it can nourish kidney water and reduce the deficiency of fire, so as to prevent high blood pressure, dizziness, tinnitus, insomnia, etc.; massage and pat on the calves and knees can dredge the meridians and promote blood circulation Treatment of varicose veins, edema, muscle atrophy, numbness of legs and feet, knee joint pain, etc.

Choose toothpaste regardless of the name and the ingredients

   Whitening toothpaste, anti-cavity toothpaste, anti-allergic toothpaste… The variety of toothpaste on the market is dazzling, and when shopping, some eye-catching slogans are even more lingering. In fact, no matter what the name is, the ingredients are an important factor in determining whether toothpaste is suitable for you. Recently, the American “Prevention” magazine invited a number of dental experts to teach you how to choose a suitable tube of toothpaste.

   Yellow teeth look for “silicone”. Whitening toothpastes contain a small amount of corrosive agents to help polish the teeth and prevent the formation of tooth stains, but the effect on “old yellow teeth” is not obvious. Dr. Augusto Robles, a dentist at the University of Alabama in the United States, suggested that if you want a better whitening effect, you can choose a toothpaste containing organic silicon. This silicon has a good wear resistance coefficient and can be used in whitening teeth. At the same time, the degree of wear on the teeth is minimized.

   To prevent tooth decay, look for “fluorine”. Bacteria on teeth interact with foods such as sugars, and the acid produced will erode tooth enamel, thereby forming tooth decay. The American Dental Association recommends that if you want to prevent tooth decay, you should choose a toothpaste containing mineral fluorine, which can form a protective film on the surface of the tooth to resist acid erosion.

Choose a humidifier wisely according to the size of the room

   With the advent of spring, the sandy and dusty weather in the north has gradually spread. Many people feel that the indoors are particularly dry. At this time, a humidifier is very necessary. Maintaining the relative humidity in the room can not only effectively combat common spring diseases such as colds and flu, but also make people feel warm indoors. When buying a humidifier, what are the different advantages and disadvantages of different types of humidifiers?

  Choose a humidifier according to the size of the house

   Due to the different airtightness of the room, the humidification capacity of the humidifier will also be The difference. If it is a small room of 16-18 square meters, you can use a humidifier of 350-400 ml per hour. If it is a wooden building or a larger area, you need to use a humidifier of 600-700 ml for humidification.

   humidifiers are mainly divided into four types

   heating type (also called steam type), this kind of humidifier works by boiling water after use Steam for humidification is the same as using fire to boil water in a kettle. Its humidification ability is strong, but because the hot steam is sprayed out of the humidifier mouth, children in the family need to pay attention to prevent children from being scalded by the steam. In addition, this type of humidifier consumes a lot of electricity because it constantly uses a heating rod to vaporize water.

   gasification type. This type of humidifier uses the principle of humidifying the filter after the filter is wetted and then evaporating the water with wind to humidify, which is the same as drying clothes with a hair dryer. This type of humidifier consumes less electricity than the heating type, but because the blown air is about 2 degrees lower than the room temperature, people who use it tend to feel cold.

   The one that makes up for the shortcomings of the heating and vaporizing humidifiers is the hybrid. The main components are the same as the gasification type, but it uses warm air to heat the filter, so that the temperature of the air is not too low or too high, and at the same time it can improve the humidification capacity. In terms of power consumption, although it is more than the gasification type, it is less than the heating type.

   There is also an ultrasonic type that uses ultrasonic vibration to disperse water into water mist, and then uses a blower to diffuse the water mist to the room compartment. Relatively speaking, the structure is simple and small, and the appearance is more beautiful. Low power consumption and no noise are its advantages, but since most of them are compact, they can hardly be used for humidification in larger rooms.

What should I pay attention to when using the humidifier?

   Hiroyuki Kitahara, who is very familiar with indoor air-conditioning, put forward some opinions on the proper use of humidifiers. He pointed out that ultrasonic humidifiers are likely to cause indoor air hygiene problems. He said that after ultrasonic vibration, the chlorine contained in the tap water will be reduced, which easily leads to the reproduction of indoor bacteria.

   In addition, he suggested that when using a humidifier, you should change the water several times a day or wash the humidifier. Regardless of whether it is a heating type or a gasification type, although some machines have added parts with a sterilization function inside, it is necessary to clean the humidifier and change the water regularly in order to inhibit the growth of bacteria. In addition, professional Lisa Kamahara also pointed out that the daily maintenance of humidifiers is also very important. She introduced that after the heating humidifier has been used for a long time, white bleach solids will agglomerate at the air outlet, and a large amount of bacteria will deposit on the gasification and hybrid water refills and filters. Clean the water refill and replace the filter. It should also be taken seriously.

The placement of the humidifier is also important

Over-reliance on humidifiers has three major hazards

  Although it has entered Yangchun in March, the spring is still cold. After the heating is stopped, everyone starts to use air conditioners to ensure the temperature. Although the indoor temperature has increased, it will be very dry, causing skin sensitivity and respiratory discomfort. At this time, Many people will think of using a humidifier. It is good to keep the indoor humidity properly. However, if you rely on the humidifier too much, the air will condense into dew, which will cause great harm. We remind everyone to pay attention to it.

  ■3 major dangers caused by condensation

  (1) Damage to the house

The higher the temperature of the air, the higher it will flow. As we all know, the temperature at the foot of the house is the lowest, and the temperature at the roof is the highest. Humidity will condense in places with higher temperatures, so water vapor will adhere to the roof, causing the walls to wet and chalk. In addition, excessive water vapor will also affect doors and windows.

   (2) Breeding mold and dust mites

Net exposure 95% of eye drops contain preservatives Expert: Does not contain but also harms the eyes

   Recently, the Weibo that “most eye drops contain preservatives” is frequently reposted on the Internet, which makes many people who use eye drops feel uneasy.

   Some experts say that eye drops are a surfactant. Even if they do not contain preservatives, long-term use will cause damage to the eyes. They should be purchased and used strictly in accordance with the doctor’s advice .


   95% of eye drops on the market contain preservatives

   Recently, “Most eye drops contain preservatives” Weibo is frequently reposted, making many netizens who use eye drops feel uneasy.

   Some netizens said that eye drops containing preservatives accounted for 95% of the market. In this regard, Xie Like, an expert at the Eye Hospital of the Chinese Academy of Chinese Medical Sciences, said that this number is not exaggerated.

   He said that there are hundreds of eye drop products on the market, including Chinese and Western medicine ingredients. “More than 90% of eye drops used clinically contain preservatives. Preservatives are added to prevent the syrup from deteriorating in contact with air after the first use.”


   eye drops do not indicate ingredients, infringing consumers’ right to know

   Yesterday afternoon, a reporter from Henan Business Daily visited a number of pharmacies in Zhengzhou and found Some eye drops on the outer packaging do not indicate whether they contain “preservative” ingredients.

   The instructions of some eye drops indicate that they contain benzalkonium chloride, ethyl paraben, chlorobutanol, benzalkonium bromide, potassium sorbate and other ingredients. These are the “preservatives” often added to eye drops.

   On December 24, Li Yingjie, a public welfare person who is concerned about drug safety and a citizen of Zhengzhou, sent a letter of advice to “order the eye drop manufacturer to modify the drug insert to protect the consumer’s right to know” to the National Foodstuffs. Drug Administration.

   Chang Boyang, a public interest lawyer at the Henan Yatairen Law Firm, said that the practices of related companies “infringe consumers’ right to know. The State Food and Drug Administration has the responsibility to protect consumers’ right to know and protect the public Good health.”


   eye drops are not suitable for long-term use

   Xie Like said, Eye drops are a surfactant, even without preservatives, long-term use can cause damage to the eyes.

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