Recently, PM2.5 monitoring data in several cities across the country have been “explodingâ€. In the face of haze, some netizens said, “The invisible and intangible air is now visible and tangible. Every breath is breathless. There is weight!"
The reporter learned from Sichuan Suning Appliance that in the past two months, the store's air purifiers have been very popular, with sales increasing by more than 200% year-on-year. To this end, Suning also launched a heavy promotion from this week to February 15th, and the purchase of two purifiers will enjoy a 50% discount on the second. In the online store, the sales of purifier brands such as Yadu, Panasonic and Daikin soared. Taking the Yadu Air Purifier as an example, it only broke through the cumulative shipments of the official flagship store of Tmall from January 13 to 28. 20,000 units.
Approximate classification
Basic type + formaldehyde removal benzene type
Lin Wubao, manager of Sichuan Suning Life Electric Appliances Department, told reporters that the air purifiers currently on the market have many functions, such as formaldehyde, odor removal, net smoke, adsorption of dust particles, sterilization, humidification and other functions. Not the same, but on the whole, air purifiers are mainly divided into two categories: one is the basic type, with four basic functions of smoke removal, dust removal, sterilization, and odor removal. The mainstream price of the market is less than 2,000 yuan. The special model is only a few hundred yuan; the other is the four basic functions of formaldehyde and benzene removal, compatible with the basic type, but it can also remove the harmful gases such as formaldehyde and benzene in the new residence. The mainstream price in the market is 2500-5000 yuan. "From the current sales data, the product of about 3,500 yuan is the best seller!"
The head of the sales department of Philips Chengdu Co., Ltd. also said that with the increase in the number of users staying in new homes at the end of the year, the sales of the brand's air purifier products will rise sharply from December 2012, especially in the middle and high-end models except formaldehyde and benzene. Once bought out of stock.
Technical interpretation
The reporter saw in the Suning Chunxi store that the air purifier sales area occupies hundreds of square meters of stores, and the products sold are dazzling, from desktop to vertical, from mini to super large, from humidifying to formaldehyde removal. When you see a string of technical terms such as negative oxygen ion technology, electrostatic dust collection technology, molecular complexation technology, etc., do you have the feeling of fainting? Face these technical nouns How should consumers choose? To this end, the Chengdu Business Daily reporter interviewed professionals and explained them for you.
Activated carbon adsorption technology - specifically for air particles
The relevant person in charge of the Philips sales department said that it should be no stranger to activated carbon. From the facial cleanser to the deodorant and other daily necessities, the super absorbent capacity of activated carbon has been utilized. It is precisely because of the super-adsorption capacity of impurities or pollution sources that activated carbon is the technology of choice for many air purification products. How does an air purifier based on activated carbon adsorption technology work? Simply put, activated carbon (filter) is re-released by an active fan to filter the air. As the most basic purification technology, it is applied to Most of the air purifiers are on.
Advantages: Strong adsorption capacity, can effectively absorb harmful substances in indoor air, such as dust, particles, free molecules, bacteria and so on.
Disadvantages: Activated carbon can only be temporarily adsorbed, and as the temperature and wind speed increase, the adsorbed pollutants may be released, so the filter material should be replaced frequently to avoid adsorption saturation.
Negative oxygen ion technology --- treatment of second-hand smoke pollution effect is significant
Negative oxygen ion technology refers to the application of air-based negative ion generators, which are negatively charged gas ions in the air, also known as "negative oxygen ions", which have sedative, hypnotic, analgesic, appetite, and drop. Blood pressure and other functions. After the thunderstorm, it is easy to feel comfortable, that is, the increase of negative ions in the air. Air negative ions can reduce active oxygen (oxygen free radicals) generated by pollutants, nitrogen oxides, cigarettes, etc. from the atmosphere, reduce the harmful effects of excessive active oxygen on the human body, neutralize positively charged airborne dust, and have no charge and then settle. The air is purified.
Advantages: Negative oxygen ion purifier has significant effect on second-hand smoke pollution, can effectively enhance blood oxygen carrying capacity by about 20%, and effectively promote human metabolism to improve sleep. At the same time, the indoor odor elimination effect is obvious, and the high-voltage static electricity generated by the computer television can be effectively eliminated to protect the vision. In addition, the release of trace ozone has a certain sterilization effect.
Disadvantages: Negative oxygen ions have a short life in air, so they need to be released continuously. However, the pollution purification effect of formaldehyde benzene series caused by decoration and decoration is very general, so it is necessary to make a difference.
Electrostatic dust collection technology - mainly used for dust removal
Electrostatic dust collection technology utilizes the principle of high-voltage electrostatic adsorption to filter pollutants in the air. It is also widely used in indoor air purifiers as a basic purification technology. The products currently using this technology are mainly based on Honeywell in the United States, and domestic brands are also used in their high-end products.
Advantages: Efficiently remove particulate pollutants in the air, such as dust, soot, pollen, cigarette flavor and kitchen fumes; at the same time, it can effectively absorb gaseous pollutants in the air and filter out pathogenic micro-organisms in the air.
Disadvantages: It is easy to produce ozone, and it only has effect on large particle gases such as particulate matter. It is mainly used for dust removal, and has little effect on chemical pollution caused by removing formaldehyde and benzene.
Molecular complexation technology - a new home decoration helper
The person in charge of Sichuan Wuxing Electric Co., Ltd. suggested that consumers should consider molecular hybridization technology when purchasing formaldehyde and benzene air purifiers. This technology is currently a technology that can effectively and completely remove indoor decoration pollution, especially chemical pollution. This technology utilizes the water-soluble properties of formaldehyde and ammonia to pass toxic gases into the complex decomposition system of molecular complexing agent and water, and finally converts indoor air pollutants into irreversible neutral macromolecular chain solid materials. Then, the relatively clean air is discharged, and finally the purification effect is achieved.
Advantages: The technology has obvious effects on the pollution caused by formaldehyde, benzene series and TVOC caused by interior decoration and decoration, and has strong pertinence.
Disadvantages: Solutions containing complex ions or similar components require regular replacement, especially when the pollution level of new homes is high.
Low temperature asymmetric plasma air purification technology - a set of sterilization
Low-temperature asymmetric plasma air purification technology can cause a large number of plasmas in the air to collide step by step, produce electrochemical reaction, rapidly degrade toxic and harmful gases and living viruses, bacteria, etc., thereby effectively killing, sterilizing, deodorizing, Smoke elimination, dust removal, and the production of non-toxic substances.
Advantages: This technology can coexist in the purification of indoor air, saving 80% of electricity in the same period of last year.
It has the characteristics of rapid elimination of virus, super purification, high efficiency of removing odor, eliminating static electricity and increasing oxygen content.
Disadvantages: As a new technology that has not yet been popularized, there are currently few products based on this technology, and the price is relatively opaque.
Tips for use
Different purifiers
Applicable area is different,
And the location is best not fixed
The person in charge of Sichuan Five Star Electric Appliance reminded that in addition to the use of functions, it is also necessary to pay attention to the different applicable areas of different air purifiers. A 25-square-meter room is suitable for a purifier with a rated air volume of 200 cubic meters per hour, and a room with a rated air volume of 400 cubic meters per hour should be selected for a room of about 50 square meters, and so on. When using an air purifier, it is best not to fix the position. You should change the position every few days to improve the indoor air more comprehensively. If you find that the air blown out by the air purifier has a musty smell, clean or replace the filter layer in time. Generally, households use air purifiers. It is best to clean and dry the filter layer every few weeks to avoid secondary pollution of indoor air.
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