It should be noted that some air purifiers have negative ions or negative oxygen ion functions, in fact, the negative oxygen ions thereof are not true oxygen, and they are easily unstable for negative oxygen ions during the generation of negative oxygen ions. Ozone, a short time to open negative oxygen ion function may be able to start, but this function is not allowed to open.
The time of the air purifier has been out of time, but before 2011, there are only a few consumers in the domestic market, mainly in order to remove decoration pollution; since 2011, with smog, PM2.5 (fine particles) Wide attention, a large number of consumers began using air purifiers.
Replace the filter material's convenience: It is necessary to understand whether the air purifier is convenient before purchasing, and the general air purifier is only replaced by the initial filter. Other parts generally need to replace or repair the maintenance. This matter must be confirmed before you purchase.
HEPA (high efficiency air purification): HEPA high density filter material is also one of the most advanced air filter materials in the field of air purification. It is recommended that consumers try to choose this technology when purchasing.
According to the purification method, the purification mode is mainly divided into three categories: activated carbon adsorption, HEPA (high efficiency air purification), UV lamp.
The function of the air purifier is mainly sterilized, purified, and other functions, different products will have a variety of functions.
