In recent years, the lot equipment has developed rapidly, and traditional air purifiers have also become one of them. At the same time, it has been given special skills such as mobile APP remote control and voice assistant control.
The twilight came and went, and the cold winter had arrived. The temperature inversion made the smog in the air aggravated. The air purifier, which had been off for half a year, began to operate, diligently absorbing the pollution particles in the air.
We all know that the air volume determines the purification speed of an air purifier, and the filter element determines the filtering capacity, which can be said to be the soul of a purifier. As a consumable, the filter element needs to be replaced regularly, usually every 6 months, if the air pollution is heavy, it needs to be replaced every two months.
Since it is a consumable product, there must be a third-party brand. Taking Xiaomi Air Purifier 2 as an example, except for the official filter element, the number of other filter element brands cannot be counted on one hand, and the quality is also mixed.
Therefore, in this issue, the Review room of Tutu has selected 5 common Xiaomi air purifier 2 filter elements in the market, namely the official, green dust, SPIRO, ZTK, and Mi Beast, to test and compare their filtration capabilities.
The prices of different brands are not the same, but they are cheaper than the official ones. Among them, the Mi Beast brand is as low as 45 yuan, which is much cheaper than the official 149 yuan. This is one of the important reasons why most users choose the third-party brand. .
Why are filter prices so different? The main reason is that the filter paper, folding strength and folding peaks of each filter element are different. When the folding strength of the filter paper is greater, more folding peaks can be generated, which can effectively reduce the wind resistance and prolong the life of the filter element. However, due to time problems, we Filter life is no longer tested here.
2. Purification test
Test introduction:First, purify the indoor air quality to below 0.1μg/m³ (initial value), and then use a cigarette to burn it to simulate air pollution. The PM2.5 value in the air reaches about 450~500μg/m³. The APP opens the maximum air volume for 10 minutes, and finally checks the filtration capacity of the filter element. When the air returns to the original indoor PM2.5 value, ignite a cigarette again to simulate air pollution, and repeat the previous action.
Test tool: third-party air detector
Test environment: a room with an area of about 14 square meters and a height of about 2 meters. The air purifier is located in the middle of the room, and the windows and doors are closed. For details, please refer to the following figure:
The initial PM2.5 value of the test environment (after purification) is as follows:
Before the test, it needs to be mentioned that because it is a simulated environmental problem, the pollution value may be deviated each time, but it is a test environment after one cigarette is smoked, and the main test this time is the filtering of fine particles after three or four minutes. ability, little impact.
1、ZTK
The ZTK filter element is priced at 118 yuan, which is the most expensive among the three-party brands
Simulate a polluted environment
After purifying the environment for 10 minutes, the PM2.5 value in the air is 0.86μg/m³
2、official
The official filter element is priced at 149 yuan, which is the most expensive of all filter elements.
Simulate a polluted environment
After purifying the environment for 10 minutes, the PM2.5 value in the air is 0.89μg/m³
3、green dust
The green dust filter is priced at 119 yuan, which is the most expensive among the three-party filter brands.
Simulate a polluted environment
After purifying the environment for 10 minutes, the PM2.5 value in the air is 151μg/m³, and the filtering ability is weak
4、Rice beast
The Mi Beast filter is the cheapest one among the three filter brands this time, and the price is only 45 yuan.
Simulate a polluted environment
After 10 minutes of purification, the PM2.5 value in the air is 158μg/m³, and the filtration capacity is weak
5、Spiral
The price of the Spire filter element is 89 yuan, and the overall appearance is not as good as the other four models, but the filter element is loaded inside the purifier, and the appearance does not matter.
Simulate a polluted environment
After purifying the environment for 10 minutes, the PM2.5 value in the air is 0.89μg/m³
It needs to be explained in advance that since the simulated environment is smoke pollution, the original PM2.5 values are not the same, but it does not affect the final test results, because when the purifier is turned on, the smoke can be quickly cleared within 5 minutes, and the rest It is the tiny particles that ultimately determine the filtration capacity of the filter element.
Then we counted how long it took for the five filters to reach a high-quality environment (0.3μg/m³), because there are too many pictures, we directly publish the data table here.
Judging from the test data of this time, the best comprehensive filtration capacity is the Siborun filter element, followed by the official and ZTK filter elements, and the poorer ones are the Green Dust and Mi Beast, both of which did not filter PM2 within 10 minutes. .5 value is purified to below 100μg/m³. In terms of filtration time, among the five filter cartridges, the official, Siberian and ZTK were purified to less than 0.3 μg/m³ in 24 minutes, Green Dust was completed in 26 minutes, and Mi Beast was finally completed in 27 minutes.
3. Summary
Seeing this, I believe that everyone has a preliminary understanding of the performance of these five filter elements. Unlike electronic products, the cost and material of the three-way filter element are different, so the price is not the more expensive the better, and our usual understanding of it is not Many, and the filter element cleans the invisible substances in the air, it is even more difficult to distinguish which filter element is of good or bad quality.
From the average score, it can be seen that Green Dust is more expensive in the three-way filter element (119 yuan), but its filtration capacity is not as good as the official one; Mi Beast has more advantages at a low price of 45 yuan, but the filtration capacity is the worst; ZTK It also has a higher price (118 yuan) among the three-way filter elements, and its filtration capacity is comparable to the official one. Finally, there is Siberian, which is priced at 89 yuan, and its filtration capacity is not much different from the official one. It won the first place in this comparison.
Finally, let’s talk about the importance of air purifier filter elements. If the air quality at home does not meet the standard, or even exceeds the red line, then this invisible thing is likely to seriously threaten human health, so when choosing an air purifier When it comes to filter elements, we should not blindly pursue cheap prices, but also pay attention to their filtration capabilities. If you are really worried, then we suggest that it is better to spend more money to choose an official filter element.
This review of the air purifier filter element is over. We will launch more reviews of other IoT devices in the future, so stay tuned.
