[PConline evaluation] If you have been to Scandinavia, you should be convinced by the local philosophy that places great emphasis on environmental protection. And in such a beautiful environment, LIFAair, a company specializing in air purification technology, was born. This brand of air purification from Finland was first born in 1988, in addition to setting standards for the air quality of its own country in Finland, and it is also very extensive in business applications. The Beijing Olympics, the Hong Kong MTR, etc. all have their participation behind the scenes. However, in the consumer market, LIFAair's real entry into China is still this year's event. The reason is self-evident—naturally, the increasingly serious air quality problems in China, especially in the north. At the beginning of this year, Edifier and Finnish LIFAair joint venture formally launched the first home air purifier LA500, and the manufacturer staff also communicated with the editors. There will be more models listed during the year, one of which is now in the evaluation room. Section LA350.
Appearance details
It is not difficult to guess from the numbers that the LA350 is naturally a "mini" model compared to the LA500. In the official introduction, the LA500 has an area of ​​59 m2, while the LA350 has 39 m2, which means that the LA350 is more suitable for use in the study space of a bedroom.
The LA350 has the same compact cylindrical design as the LA500, but the size of the LA350 is only 250mmX505mm, which is much smaller than that of the LA500 300mmx800mm. Smaller spaces are particularly important in bedrooms where the area is already small. Its CADR value of particulate matter is as high as 330m3/h, and the CADR value of formaldehyde is as high as 141m3/h. The lifetime of CCM filter can reach the highest national level F4/P4.
One of the features of the LIFAair LA500 is the addition of an air detector, which is still included in the LA350. , Attached below is a photo of the accessories and a brief introduction. The simple placement of the accessory box makes the buyer feel comfortable.
The air outlet uses 36 pieces of 45-degree fins and a full-fledged aircraft engine. Not only the unique shape, but also a good use of aerodynamic design, enhance the ability of air purifiers to stir the indoor air, and then improve the indoor purification effect.
The person who opened the LA350 for the first time may not know how to operate it. In fact, the simple design of LIFAair has been integrated into the entire manipulation process. Pay attention to the top will see an array of dots arranged in an arc, hand caress the arc, increase (weaken) the wind speed (clockwise), you can easily adjust the fan speed, infinitely variable air volume adjustment mode can be The wind speed is accurate to the user's most desired stall, and it is personalized.
The round hole design of the lower part of the LIFAair LA350 air purifier facilitates convection with the air, making it possible to purify the air in all directions instead of a single direction. The small size of the round hole will not suck in the small items in the home. The design is humane and beautiful.
Summary: LIFAair L350 air purifier, has a family of cylindrical body appearance, regardless of which angle can feel the designer's pursuit of aesthetics. The design of the air outlet on the top is not only beautiful but also provides better help for improving indoor air mobility. The design of the fuselage without buttons, the use of cis (counter) clockwise increase (weakening) wind speed, you can easily adjust the fan speed.
Filter system dismantling
Although it is a mini version, it is not allowed to shrink in the filtered material. LA350 and LA500 use the same filter material, which is also LIFAair specially formulated acid-proof activated carbon and H12 grade HEPA filter. However, because of the smaller size of LA350, activated carbon filter and LA500 adopt different installation methods.
The activated carbon network of LA350 uses four arc-shaped panels, which are respectively installed around the inside of the machine, just forming a circle. In the middle is a cylindrical HEPA filter. The inner HEPA filter cartridge is produced by APOLLO, a professional filter cartridge supplier in Japan. The filtration grade is H12. Because the overall area is smaller than that of the LA500, its CADR value for particulate matter is 330m3/h. Will be slightly lower than the LA500
The design of the activated carbon cartridge on the outside of the HEPA cartridge can effectively eliminate the secondary pollution of the carbon powder. The data shows that the deployment area of ​​the two filter cartridges is 4.6m2, which means that under the same air flow rate, the wind speed through the filter element will be reduced, so that the high-quality HEPA filter material can more easily capture dust particles, while saving energy and at the same time Extend filter life. The HEPA filter cartridge is cleverly designed to leave plenty of space for full contact with the air to achieve air purification.
A good air purifier is inseparable from the support of the fan. After opening the filter, the fan assembly can be seen. The centrifugal fan with continuously variable speed is used, and it is centrifugal after centrifugal. After the blade is washed, it is shaken. of. Most of the air purifiers on the market use forward centrifugation, which is light in weight and low in cost, but the efficiency is not high in backward centrifugation.
Xiao Bian also noted that the LIFAair designers have done their utmost in every detail, especially where they are linked to the bottom shell of the machine, all using soft glue to prevent the polluted air from entering these areas and ensuring that all air output is filtered.
Split monitoring system
This air purifier can also implement APP monitoring, download its APP on the mobile phone (two-dimensional code in the specification), open the APP connection monitor, monitor click on the network, you can add devices in the mobile phone APP success.
The LIFAair LA350 is also equipped with a monitor and a separate design with the purifier. In addition to ensuring the conciseness of the main body, the LIFAair LA350 can also check the current indoor air quality at any time via the monitor, and directly operate and control the air purifier on the monitor.
LIFAair LA350 has built-in a variety of high-precision sensors that can accurately measure indoor air PM2.5, formaldehyde, carbon dioxide concentration and temperature and humidity and other parameters, and according to the indoor air pollution situation, choose the appropriate mode to open the purifier related functions. Unlike the majority of products on the market that require the user to set the program before they can start working, the LA350 has a higher degree of intelligence, which undoubtedly provides users with more convenience in daily use.
Purification capacity test
Ordinary home indoor purification effect is the key to determine the quality of air purifiers, this time we choose 25 square simulated home environment for testing. After lighting up four cigarettes in a closed room to make them fully burned, second-hand cigarettes fill the room. The tester was used to test the amount of 0.5 micron particles in the air and the test was performed every 10 minutes. Test the change of the purifying effect at different time points.
After the cigarette burned, the odor diffused into the room. Using the air quality tester, the indoor air pollution index found that the concentration of 0.5 micron particles was as high as 238385, which was a very heavy pollution level. When I entered the test room, I felt that my breathing was not smooth and the air was very turbid.
Turn on the air purifier for testing
The wind speed was adjusted to the maximum gear mode for the purge test and entered the simulated home environment every 10 minutes for testing. After 10 minutes of decontamination, the heavily polluted air began to dissipate. It can be seen that the LIFAair air purifier has a very efficient cleaning effect.
Twenty minutes later we tested. The number of 0.5-micron particles in the room has dropped to 35,190, which has changed significantly compared to previous strong smoke flavors.
After 30 minutes of purging, Xiao Bian's re-entry into the room was a distinctly fresh air. The indoor smoke smell and particle pollution were purified.
Summary: In the purification capacity test, in order to meet the needs of the family room, a purification test was performed in a small room of 25 square meters. It took only 30 minutes to purify the indoor polluted gas. This is due to the fact that the medical grade H12 filter cartridge of this air purifier is combined with 1 kg of special activated carbon to achieve more efficient removal of aldehydes.
Airflow and noise tests
Air volume test
Next, we will test the wind speed. Since the LIFAair LA350 air purifier uses a continuously variable speed fan, we use the lowest gear and the highest gear respectively. The wind speed is an important factor in determining the CADR of the purifier. CADR is one of the indicators of decontamination ability. It can quickly circulate indoor air and output clean air. Just like the LA500 we tested earlier, don't underestimate the position of the tuyere. Not only does it look beautiful, its 36 fins are tilted at 45 degrees, allowing fresh air to spread evenly throughout the room.
Low-level outlet test
Maximum stall outlet test
Noise test
The noise test of the air purifier is very important. Especially for the new national standard of the air purifier, one of the “three highs and one low†parameters is that the noise must be controlled when the air purifier is required to operate. When used at night, it will directly affect the user's sleep, so a good air purifier is less efficient and less loud. Due to the use of an infinitely variable speed fan, we next select the volume of the sound produced by the lowest gear and the highest gear in an environment of 36dB(A).
Low-range noise test
Maximum gear noise test
Summary: LIFAair LA350 air purifier has a strong fan composition and special mute design. It was quite surprised by Xiao Bian in the noise test. Especially in the silent mode, it basically did not feel the noise of the machine. The user turned on the gear at night. To ensure a good night's sleep and clean air at the same time. Due to the large-open design of this air purifier, our instrument can only test one side of it, but its air volume is not weak.
Power test and summary
Air purifiers must be used for a long period of time, so the power used is particularly concerned. This time we also chose to test the lowest and highest grades. Test them separately to see how much power they are working on.
Lowest gear instantaneous power consumption
Maximum stall instantaneous power consumption
Summary: From the power consumption test, it was found that the instantaneous power of the LA350 air purifier at the lowest gear is quite low, which is lower than any of the air purifiers tested by Xiao Bian before. Users stay open for long periods of time without worrying about its power consumption. At the same time, it was found that this fan's variable frequency stepless frequency conversion technology can feel a smooth transition effect when switching gears.
The summary of the full text: LIFAair LA350 air purifier has a unique appearance and adopts a cylindrical appearance, which does not occupy too much space. At the same time, it is equipped with an independent air quality monitoring system that can operate independently of the purifier and is more convenient for consumers. The filter material gives the user the greatest sincerity. The medical H12 filter element is combined with 1 kg of special activated carbon to achieve more efficient removal of aldehydes. Its CADR value of particulate matter is as high as 330m3/h, and CADR value of formaldehyde is as high as 141m3/h. The lifetime of CCM filter can reach the highest level of the country, F4/P4. It is also outstanding in the test of purification ability, and the task can be completed in thirty minutes. , In addition noise and power consumption are also very good, low power consumption, low noise, suitable for home use. For an air purifier that is less than 4,000 RMB, it is really reliable to have such a powerful purification effect.
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