Question 2: How to choose the reference 1 for the parameters of air purifier purchase? The CADR value is 2. Power consumption 3. Noise value 4. Is there a HEPA filter? Price 1. What is CADR value? CADR is the speed at which clean air is output per minute. When comparing, be sure to pay attention to whether the unit is meters (cubic meters) or British cubic feet (cubic feet), minutes or hours. The air volume does not necessarily mean good effect, but how much really clean air can be sent is the key. The higher the CADR value, the higher the price and the larger the applicable room area. Of course, there is no need to buy the biggest one, just like choosing an air conditioner. If the power of the refrigerator is not enough, it will only lead to the compressor running all the time, which will not only consume electricity, but also the temperature will not drop. Therefore, it is suggested that the model with higher CADR value should be selected as far as possible within the price allowed.
Kejian Kekang anion purifier has a CADR value of 200 cubic meters per hour (applicable to PM2.5).
2. What is HEPA? Chinese means high efficiency air filter. The efficiency of HEPA-compliant filters is 99.7% for 0. 1 micron and 0.3 micron. The characteristic of HEPA is that air can pass through, but fine particles can't. Brand machines in the domestic market are mainly occupied by foreign brands, with a market share of about 20%, but HEPA filter elements in purifiers generally come from China. HEPA, which is common in the market, is mainly made of high-efficiency filter paper, and its filtering effect is obvious. It is the first choice for purifier filter screen. Kejian Kekang negative ion air purifier adopts this kind of efficient HEPA filter. Now air pollution is particularly serious, especially PM2.5, a toxic organic particulate matter, which is very harmful to human health. Particles of PM2.5 need to be filtered by HEPA filter. Kejian Kekang anion air purifier adopts this HEPA high-efficiency filter.
The so-called PM2.5 is also a fine particle, which is a general term for solid particles or droplets with a diameter less than or equal to 2.5 microns in the air.
The main source of PM2.5 is man-made emissions, and the direct emissions mainly come from combustion processes, such as the combustion of fossil fuels (coal, gasoline and diesel), biomass (straw and firewood) and garbage incineration. The main gaseous pollutants converted into PM2.5 in the air are sulfur dioxide, nitrogen oxides, ammonia and volatile organic compounds. Other sources include road dust, construction dust, industrial dust and kitchen smoke. PM2.5 mainly causes harm to respiratory system and cardiovascular system, including respiratory infection, cough, dyspnea, decreased lung function, aggravated asthma, and premature death of patients with chronic bronchitis, arrhythmia, non-fatal heart disease and cardiopulmonary disease. The elderly, children and patients with heart and lung diseases are sensitive groups of PM2.5 pollution.
3. Pay attention to the power consumption and noise of the air purifier, especially the operation of/kloc-0 24 hours a day, 7 days a week, 30 days a month and 365 days a year. If the electricity consumption is amazing and the power saving ability is insufficient, the electricity bill alone is scary. Generally, Japanese air purifiers are specialized in the design and manufacture of precision variable frequency motors, so most of them can reach the mute standard of 14 ~ 20 dB.
The lowest grade of Kejian Kekang negative ion air purifier is only 18 dB. The maximum purification power is 58W. Moreover, this machine also has an odor sensing intelligent system, which can adjust the fan speed according to the air quality. 4. Regarding the function of humidification and deodorization, air purifiers with humidification function have appeared recently, but the effects are different. It has humidification function, which can adjust the air humidity while purifying the air, but some people question whether it will improve the possibility of breeding Q bacteria in the body. Kejian Kekang negative ion air purifier can completely eliminate your worries. The machine adopts ultraviolet sterilization, cold catalyst, honeycomb activated carbon and sterilization screen for multiple filtration, which can kill more than 98% of bacteria in the air, remove harmful gases and odors in the air and make the air fresh and natural.
Seeking adoption is a satisfactory answer.
Question 3: How to choose an air purifier? First, never be superstitious about brands. Be sure to know the relevant knowledge before buying, and don't be confused by the manufacturer's propaganda. After all, it is related to your health; Second, businesses are all for profit, and the cost of low-priced products cannot be high. Instead of buying a useless psychological comfort, it is better to spend more money to really enjoy health. Third, you must carefully look at the filter element in the machine when purchasing. The naked eye can see whether the filter element is thick or not. Don't believe the propaganda about how often to change the filter. How does he know where you live and how the air is at home? This is a hypothetical replacement cycle. In short, even if you don't know much technology, you must buy a big filter element. Finally, the air purifier must be replaced in time, otherwise it will breed bacteria and cause more pollution. It is best to buy those with pm2.5 readings and carefully understand the life calculation method of their filter elements to ensure no secondary pollution.
Question 4: How to choose a home air purifier In fact, the principle of an air purifier is very simple and the structure is not very complicated. Buying an air purifier is mainly concerned with two core components, one is the filter screen (the core of the purifier, which determines the purification effect) and the other is the motor. Don't believe that the purification of negative ions and nano-water molecules on the market is the gimmick of air purifier manufacturers, mainly using some novel scientific names to fool the people. The most primitive and effective purification method is physical purification. Air is sucked into the purifier by a motor, and impurities in the air are absorbed into the filter screen through the filter screen inside to discharge fresh air. Therefore, the quality of the purifier mainly depends on its filter screen. The first thing to look at is the content of activated carbon in the filter. The higher the activated carbon content, the longer the purification time, because the filter screen is a consumable. After formaldehyde and benzene in the air are absorbed by activated carbon, the filter screen has to be replaced. In addition, the quality of activated carbon is very important, and the internal space of bad carbon is small, which basically fails to achieve the purification effect. There is also a filter screen in the purifier, usually several layers. Among them, activated carbon and HEPA filter are the core of the filter. Activated carbon adsorbs formaldehyde, benzene, etc. HEPA filter is a sharp tool for filtering secondhand smoke and PM2.5 HEPA filter must be the best, which can filter 0. 1-0.3 micron and the removal rate can reach over 95%. Personally, I suggest buying imported evolver. Although the price is higher, the removal effect is much better. It is better not to buy a useless purifier. I recommend some models for you. Austin air purifier, Honeywell purifier and IQAIR purifier should all be above 1W, but they are really easy to use.
Question 5: How to choose an air purifier At present, there are two kinds of air purifiers on the market, one is a fan filter screen air purifier, and the other is a fanless negative ion air purifier.
Question 6: What factors should be considered when choosing an air purifier? Different brands of air purifiers have different effects, but it is certain that they can remove particulate matter, but the scope and efficiency of removal are different. The best way to judge is to know the filter level (the higher the filter level, the higher the filtration efficiency. At present, the HEPA filter used to remove PM2.5 is generally H 13). Cigarettes are detected (detector can be selected). Generally, after a cigarette, PM2.5 can produce a chart (500). How long will it take for this purifier to reach a safe value? A qualified air purifier can not only effectively remove particulate matter, but also have the ability to remove harmful gases, such as formaldehyde, benzene series and gas. For example, most cities in the north have serious smog. If you have children at home, try to start with an air purifier, such as the Newbell air purifier, which is good. There are all kinds of air purifiers, and the activity price in official website is also very reasonable, and the cost performance is still very high.
Question 7: I want to buy an air purifier, but I don't know how to choose! ! At present, the more popular air purifier brands on the market are: Philips, Langkong, Panasonic, Samsung, Daikin and so on. You can understand these brands and compare cadr, purification area, filter material and filter material loss. If the funds are sufficient, it is recommended to buy an air purifier with a higher price. An air purifier of one or two thousand yuan can basically play a calming role.
Question 8: How to choose a truly effective air purifier? 1, choose the appropriate purification technology; 2. Choose products with low power consumption
Question 9: How to choose the top ten list of air purifiers, pay attention to the filter and motor. The most important thing to pay attention to when purchasing an air purifier is the filter screen and motor. The higher the technical index of the filter screen, the better. For example, HEPA mesh can filter 0. 1 micron particles better than 0.3 micron particles, and the higher the motor power, the better.
Second, pay attention to air volume and clean air volume. When purchasing an air purifier, you should also pay attention to the air volume and clean air volume of the product. Design a thin air purifier, and the filter layer inside is also very small and beautiful. It is often not long before the dust capacity of the material is saturated, and the filter element needs to be replaced frequently.
Third, follow the principle of "choosing the small over the big". For example, in a three-bedroom house, consumers are advised to buy a small machine, seal and purify it in one room for a few hours, and then move to another room for purification. It is not recommended to buy a large machine. All the doors of the three rooms are opened and cleaned at the same time. Because the former is closer to the laboratory environment, while the latter is blocked by obstacles such as doors, the air circulation will be affected and the purification effect will be poor.
Fourth, we should see clearly the nature of removable particles. When purchasing an air purifier, we should not only see the function of the product clearly, but also see whether it can remove particulate matter or chemical pollution, so as to purchase it pertinently.
Fifth, pay attention to the noise value and ozone concentration. The noise value of the air purifier should not exceed 65 decibels. Pay attention to the ozone concentration when purchasing an air purifier with ozone function. According to the national standard, the ozone concentration of air purifier should not be greater than 0. 1 mg/m3, and the indoor ozone concentration should not be higher than 0. 16 mg/m3, otherwise it will do harm to human body.
Le Wei is the top brand of high-end purification equipment in the world. Le Wei Purification Equipment provides household air purifiers, car air purifier, portable air purifiers and water purifiers suitable for families, shopping malls and other occasions.
Question 10: How to choose an air purifier can be based on these three aspects: the greater the CADR value, the better (recommended by ordinary families 100 cubic feet per minute). 2. Choose the purifier according to the room area (clean air volume =2.3× room volume/time). 3. The percentage of removal rate is 3. PM2.5 and formaldehyde. Understanding these three aspects is very helpful for choosing a good air purifier, at least not fooling some businesses.