Haze is in the limelight, who will guard our health? Air purifiers, especially negative oxygen ion air purifiers, are in chaos. How should consumers choose? In this regard, the author interviewed relevant air purification experts from the Chinese Academy of Building Sciences for everyone. Summarized some strategies for purchasing negative ion air purifiers.
Look at the purification method
Currently, the air purifiers on the market can be roughly divided into two categories according to the purification method: one is the traditional HEPA filter type air purifier, and the other is the negative oxygen ion air purifier that has emerged in recent years.
The HEPA filter type air purifier adopts a passive adsorption purification method, which relies on the fan to draw air for circulating filtration. The advantage of this type of product is that it has a better purification effect on pollutants with larger particles. The disadvantage is that the filter screen must be replaced every few months, and the long-term use cost is high. In recent years, with the popularity of the concept of negative air ions, many filter-type air purifiers have also added negative oxygen ion emission functions, but their essence is still a filter-type air purifier, which only filters and removes dust. Can not increase the concentration of negative oxygen ions in space.
The small particle size negative oxygen ion generator has been proven to be the most efficient and healthy air purification product. Its purification principle is to take advantage of the high activity and long migration distance of small particle size negative ions to actively attack and capture small particles, make them agglomerate and precipitate, and remove PM2.5 in the air safely and without dead ends. And the product has zero noise, no consumables, easy maintenance, and no worries about use.
Look at air negative ion generation technology
At present, the market for negative oxygen ion air purifiers is chaotic, and the quality of products varies. Experts say that most products add a fan device to the simple negative ion generator, and use the fan to blow the negative oxygen ions outside. Most of the negative ions produced by this technology are air negative ions with large and medium particle sizes, and are accompanied by positive ions and ozone derivatives. Large and medium-sized negative oxygen ions have low activity and cannot automatically migrate, so they can only work in a very small area, and can not play a substantial role in increasing the concentration of indoor air negative ions. Therefore, experts suggest that consumers, when buying negative oxygen ion air purifiers, must choose products that can generate small particle size negative ions.
It is understood that the small particle size anion is an ecological-grade negative oxygen ion equivalent to nature. It has high activity and long migration distance. It can form a negative oxygen ion forest bathing environment indoors without the aid of a fan. Relevant experts told the author that only cutting-edge technologies such as ecological anion generation chip technology can generate small particle size air anions. At present, only a handful of manufacturers such as Sen Peptide can master the technology of ecological anion generation chip in China. Consumers must be cautious when buying, and don't be fooled by the dazzling propaganda of businesses.
See product price
At present, the prices of negative ion air purifiers on the market vary greatly. The more expensive ones need tens of thousands of yuan, and the cheap ones only cost tens of yuan. Is the higher the price, the better the quality? Actually not.
Experts said that the structure of the air purifier is relatively simple, and the profit margin is higher. Therefore, the performance of a negative oxygen ion air purifier worth tens of thousands of yuan is not much better than that of a negative ion generator worth 5,000 to 6,000 yuan. Therefore, consumers should pay attention to the cost performance of the product when purchasing, not that the more expensive the product, the better the performance. On the other hand, the small particle size negative oxygen ion generator uses cutting-edge technology, and its cost is basically more than three thousand yuan. Therefore, it is best not to buy products with too low prices.
