Question 2: How to choose a home air purifier? In fact, the principle of 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 3: How to choose the reference 1 for the purchase parameters of air purifier? 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 4: What are the precautions for purchasing an air purifier? First of all, we should consider the use environment and the effect to be achieved. General indoor air pollution is: 1, dust, virus, bacteria, mold, mites and other allergens; 2. Inhalable volatile organic gases, such as formaldehyde, benzene and ammonia; 3. Radioactive pollution caused by radon gas released from strata and building decoration materials and its daughters. Therefore, it is necessary to comprehensively consider the functions and effects of air purification products.
Secondly, we should consider the purification ability of the air purifier. If the room is large, you should choose an air purifier with a large air purification volume per unit time. Generally speaking, a larger purifier has stronger purification ability. For example, in a room of 30㎡, choose an air purifier of120m3/h. When purchasing, you can refer to the introduction in the sample or manual to choose.
Third, we should consider the service life of the purifier and whether the maintenance is simple. If some products need to be cleaned and replaced due to the prolonged service time of the purifier adopting the principles of filtration, adsorption and catalysis, and the filter screen inside the purifier tends to be saturated with the air purifier, users should choose the purification filter screen with regenerative ability (including high-efficiency catalytic activated carbon) to prolong the service life; There are also some electrostatic products that do not need to replace the relevant modules, as long as they are cleaned regularly.
Fourth, the layout of the room and the matching of the purifier should be considered comprehensively. The air inlet and outlet design of air purifier has 360-degree circular design and one-way design.
Question 5: What standards do you need to look at when choosing a good air purifier? At present, there are national standards for air purifiers. The national standards are three highs and one low-CADR value, high CCM, high energy efficiency and low noise. The 352 purifier I just bought was selected according to this new national standard, far exceeding the new national standard.
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: How to choose an air purifier? When choosing an air purifier, we should grasp six key points:
First, filter the material. A good filter material (such as HEPA high-density filter material) can absorb pollutants above 0.3 micron up to 99.9%.
Second, purification efficiency. If the room is large, you should choose an air purifier with a large unit purification air volume. For example, for a room of 15 square meters, you should choose an air purifier with a unit purification air volume of 100 cubic meter/hour.
Third, the filtering method. Purifiers on the market are constantly adding six, eight or even ten layers of filters. With the blockage, precipitation and saturation of the filter screen, the filtering effect of the purifier will decrease. Therefore, consumers should choose technical products with mobile filtration to remove smog, such as the wall-mounted fresh air purifier for household Taifeng to remove smog. The filter element is always new, and there will be no secondary pollution and blockage. Fourth, the room pattern. The air inlet and outlet of the air purifier have a 360-degree circular design, and there are also unidirectional air inlets and outlets. If the product is not limited by the room layout, you can choose the fresh air purifier hanging on the Jiatai wind wall.
Fifth, demand. Choose an air purifier according to the kind of pollutants to be purified. HEPA has a strong purification function for smoke, suspended particles, bacteria and viruses, and catalytic activated carbon has a good purification effect for odor and harmful gases.
Sixth, after-sales service. After the main purification filter fails, it needs to be replaced by the manufacturer, so we should choose the products of enterprises with perfect after-sales service.
hope this helps
Question 8: 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 9: 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 10: How to choose an air purifier? The CADR value is detected by AHAM, and the clean air output detected by the air purifier for inspection under certain detection conditions. Clean air output refers to the amount of clean air in a room with applicable area under certification conditions. Generally speaking, the greater the power of the tested air purifier, the greater the output of clean air; At the same time, the larger the applicable area. The CADR value of "purification efficiency" of air purifier can only be determined on the premise of comparability. That is to say, under the same "certified applicable area" condition, the machine with the highest CADR value has the highest "air purification efficiency". Therefore, it is not the output of clean air that represents the "air purification efficiency" of air purifier. The correct comparison method is to change the CADR values of all the tested machines into CADR values per unit area for comparison. It is recommended to purify the cloud and learn about the purchasing skills of air purifiers.