What you need to know about air purifier
Source: Huicongjia power grid
Novel coronavirus infection pneumonia epidemic, let people pay more and more attention to health, health home appliances have become popular.
And the rise of air purifier products in the past two years, during the epidemic period has been used again. Experts say it is necessary to turn on air purifiers to prevent and control bacteria in indoor environments. In this case, how to buy air purifier? Here we will share with you some knowledge points about air purifier, these are the dry content you need to know before you buy products, in order to choose the most suitable for their own air cleaning products.
To understand the air purifier, first of all, we will introduce it to you from its own structure. The air purifier products can be divided into external housing, fan components, filter components and intelligent components with simple structure.
1. External shell
That is, the appearance of the air purifier's product, the fashion and simple appearance, although it will not fundamentally affect the purification effect, it can be better integrated into the home decoration style, occupy a smaller interior space, etc., the pros and cons of this are different opinions, and can be chosen based on their own preferences.
2. Fan components
The fan component of the air purifier determines the "power" of the product. At present, the air purifier fans on the market are basically divided into axial flow and centrifugal type. The axial flow works like a fan, with air coming in on one side and leaving on the other. In the centrifugal case, there is a process of air accelerating the centrifugation, and the air will pass through the filter faster and more penetrating. Therefore, the centrifugal fan air purifier has certain advantages in power.
At the same time, the fan component also includes the dynamic design of the air duct. Excellent products can achieve higher power and lower noise, which benefits from the unique design of the air duct. Consumers can also pay attention to it when choosing.
3. Filter screen component
The purification effect of air purifier "core", most of its purification effect mainly depends on the filter. At present, the air purifier filter components on the market can be divided into electrostatic dust collection filter and HEPA filter.
The former uses the principle of electrostatic adsorption to purify impurities in the air through electrostatic dust collection device. While the latter is more mainstream, the main material is HEPA filter, which the higher the level of HEPA filtration accuracy is also higher, most of the current high-end products use 13 HEPA above the filter.
4. Intelligent components
Nowadays, with the rise of smart home appliances, many air purifiers are equipped with intelligent functions. For example, intelligent display of PM2.5, automatic purification mode, remote control of mobile APP, etc., the realization of these functions depends on intelligent components. There are rich built-in sensor probes and ambient air quality detection devices, which can carry out real-time monitoring of indoor environment and optimize the use experience of products.
Of course, it is not enough to understand the structure and composition of the air purifier products. For the advantages and disadvantages of the air purifier, we also need to understand its performance indicators, including CADR value, CCM value, energy efficiency ratio and noise value, which are summarized as "three high and one low".
1, the CADR value
CADR value, namely, the amount of clean air, represents the amount of purified air per hour, and is the unit representing the purification speed. When choosing a purifier, the air purifier with a large amount of clean air is more practical and more suitable for indoor air purification in a large room.
For different air pollutants, the air purifier should respectively mark the CADR value of corresponding pollutants, such as particle pollutant CADR, formaldehyde CADR, etc.
2, CCM values
CCM value is the total mass of the target pollutant in the purification treatment when the clean air quantity of the air purifier attenuates to 50% of the initial value. The life of the filter screen can be measured more intuitively. The larger the CCM value is, the longer the cycle of replacing the filter element is.
According to the size of CCM value, the new national standard is divided into four grades for the purification of particulate matter: P4 corresponds to ≥12000, P3 corresponds to 8000~12000, P2 corresponds to 5000~8000, P1 corresponds to 3000~5000, in milligrams. The higher the grade is, the better the purification ability is. P4 is the best, followed by P3, P2 and P1. In addition, CCM values are also divided into four grades for gaseous pollutants such as formaldehyde: F4 corresponds to ≥1500, F3 corresponds to 1000~1500, F2 corresponds to 600~1000, and F1 corresponds to 300~600. The higher the grade, the better.
3, energy efficiency ratio
Energy efficiency ratio is an important index to measure the purification performance and power consumption of air purifier. The higher the value is, the more energy saving the air purifier is, and the more consistent this index is with the concept of green environmental protection.
The energy efficiency of air purifiers is divided into three levels, among which level 1 has the highest energy efficiency. The energy efficiency limit is level 3 of the energy efficiency grade.
4. Noise value
Noise value is the air purifier new national standard of 4 core indicators, the only one look down on the high parameter.
Noise value is of course the lower the better, can not affect the normal rest. At the same time, the noise and CADR are a pair of enemies, the higher the CADR value, the high speed of the internal fan is required, and the noise will naturally be greater. Therefore, the new national standard limits the maximum noise respectively for the unused CADR values. Under the same CADR value, the smaller the noise value, the better.
After understanding the structure and performance indicators of the air purifier, I will give you a few suggestions in the process of using the air purifier.
1. Ensure that the fuselage is smooth
In the process of use, try to ensure that the body of the air purifier is stable, to avoid damage to the air purifier itself because of dumping.
2. Ensure that the inlet and outlet are smooth
Be sure to ensure that the air flow is smooth at the air inlet and outlet of the air purifier when it is in use. Remove the plastic protective film on the screen surface before use.
3, normally open common air purifier
Air purifier is a health home appliance product that can keep protecting indoor environment health after long-term use. It is recommended that you often open it, and the effect will be better for a long time