[PConline Professional Evaluation] Beijing Haze has hit several times in recent times and the air purifier has once again ushered in the sales season. But unlike in previous years, consumers are more savvy when shopping for products. With the official introduction of the new national standard, the chaos in the market is effectively eliminated. More importantly, through the new "Air Purifier GB" consumers can judge the quality of air purifiers through CADR, CCM, noise and other parameters.
Lake Monet K8 Picture Evaluation Forum Quote
Speaking of the new national standard for air purifiers, the Lake KJ801 air purifier as the first product to pass the new national standard test has indeed demonstrated strong strength in terms of CADR value. The CADR value has increased by 30%-50% over the market leading level and is higher than the national standard. The highest value. At the same time with the addition of formaldehyde technology, making the clean air of formaldehyde reach 480m3/h high, which is much higher than the highest national standard value of 400m3/h. The newly added cumulative purification value, the data is as high as 10000MG, is the highest level of national standards F4 requirements The 1500mg more than 6 times, the performance is very eye-catching.
â— appearance and details
This KJ801 air purifier from Lake uses champagne gold as the main color, with the upper part of the white background, creating a strong sense of contrast. Square pillar body shape, the corner position are using arc transition, not only beautiful for the user with a child at home, can play a protective role.
Through the new national standard test, this air purifier is definitely a hero. The large amount of clean air can efficiently remove PM2.5, its particulate matter clean air amount (CADR) is as high as 840m3/h, and the formaldehyde clean air amount can also reach 480m3/h, while the formaldehyde CCM value is as high as 10000mg. Compared with the high-end air purifiers on the market, the performance of the Lake KJ801 is at the top of the list.
The Lake KJ801 uses a twin-turbine high-efficiency centrifugal fan to suck contaminated air from both sides and deliver clean air through the top. A good fan can speed up the flow of indoor air, so as to achieve rapid purification of indoor air.
Both sides of the fuselage are equipped with two low-impedance and high-efficiency filter composite HEPA filters. This composite filter uses innovative formaldehyde decomposition technology to use ultra-microporous technology to decompose formaldehyde into carbon dioxide molecules and water molecules, making decarboxylation more Efficient and lasting.
Using a high-precision PM2.5 laser sensor, real-time detection and display of PM2.5 values ​​in the environment, users can see the value changes in the top of the operating interface.
The use of removable air outlets makes cleaning easier. The user only needs to push the air ejector jack from the right side of the machine to easily remove the air outlet board, and the operation is very simple.
Using the physical key operation interface, the user can see the current air quality value through the display screen, and the PM2.5 air quality diagram is transformed by a 6-fold color. The darker the color, the more serious the PM2.5 contamination is. And this air purifier is also equipped with light detection, it will automatically turn on sleep mode after turning off the lights at night.
Intimate and humanized design, equipped with a 360° universal roller at the bottom, the user is more convenient to move.
Summary: From the appearance of the product using the popular champagne gold as the main color, curved side square column fuselage, can see the excellent production process of the Lake factory. With a high-precision laser sensor, the user can be informed on the panel or mobile phone of the current change in air quality. A number of intimate designs, including the convenient disassembly of the air panel and the 360-degree universal scroll wheel, enhance the user experience.
â— Mobile phone configuration instructions
With the popularity of smart homes, Lake's KJ801 air purifier can be used under the condition of wifi via the smart phone and wireless router of the "Leica Smart Butler" app. It can be remotely controlled, real-time detection of the current air quality in the home, and respond to hazy weather in a timely manner, so that you can immediately breathe a healthy and fresh air after you get home from work.
Before registering, you need to register your own account, and ensure that the machine and the phone open the wifi status. The APP will automatically search for the purifier. You can also open the search for the built-in transmitted wifi signal via link mode.
Each Lake KJ801 has an independent verification method, users can scan through the bar code on the back of the fuselage for quick links.
When the link is successful, you can enter the main interface to see the PM2.5 status of the current machine location, not only has the physical button body, but also through the mobile phone APP remote control.
â— Purifier filter system dismantling
The Lake KJ801 air purifier is equipped with a dual-power twin-turbo design. The two sides of the fuselage are equipped with a composite HEPA filter. Removal can provide you with 840 cubic meters of clean air per hour. The removal rate for white staphylococcus is as high as 99.9%. Both sides of the fuselage are equipped with two filters to achieve double protection. Through the screening filter, inertial collision, active interception and diffusion and adsorption of four advanced filtering methods to protect the user's respiratory health.
Pre-filter
The pre-filter can effectively filter the dust with a particle size of >5 μm, and can filter large dust particles in the air, so that the filter life of the subsequent HEPA filter can be guaranteed.
Composite HEPA filter
HEPA filter performance is an important measure of purification capacity, not only to consider the filter capacity, but also weigh wind resistance performance. The low-winding, high-efficiency melt blown HEPA used by Leica this time can achieve a perfect balance between high-efficiency purifying ability and recirculating air power.
This composite filter is equally excellent in terms of formaldehyde removal. Its innovative formaldehyde removal technology and ultra microporous activated carbon adsorption technology combine formaldehyde removal into carbon dioxide molecules and water molecules, making aldehydes more efficient and lasting. . And in addition to the CADR value of formaldehyde up to 480 cubic meters / hour, formaldehyde CCM up to 10000mg far exceeds the value of the new national standard.
Summary: The KJ801 air purifier from Leica uses low wind resistance and high power efficiency compound HEPA. Two composite HEPA filters can effectively block PM2.5 and achieve high purification performance. In terms of formaldehyde removal, carbon dioxide molecules and water are formed by decomposing formaldehyde to protect relatives in the home from harmful substances.
â—Air purifier purification capacity test
The indoor home purification effect of the average family is the key to determine the quality of the air purifier. This time we selected 25 square meters of room to simulate the home environment for testing. After igniting three cigarettes in a closed room to make it fully burned, second-hand smoke fills the room. Using the tester to test the PM2.5 index in the air, PM2.5 was measured every 10 minutes and the purifying effect of this air purifier was measured at different times.
After the cigarette was burned, the odor diffused into the room. The indoor air pollution index was tested with an air quality tester. The 0.5 um particle concentration value was as high as 247691, which was extremely heavy. The indoor air was unable to breathe, and the smell was pungent.
Turn on the air purifier for testing
The air purifier is turned on, the wind speed is adjusted to the high-grade purification mode for purification test, and the simulated home environment is checked every 10 minutes. The tester was used to test the change in the concentration of the particulate matter in the chamber, and the 10-micron particulate matter was lightly polluted by the 10-minute purifying capability for 10 minutes.
After the 20-minute Lake KJ801 air purifier was turned on for purification, the room was re-entered and room air was no longer cloudy. At the same time, smoke also disappeared in the PM2.5 monitor, indoor particulate values ​​also reached a healthy level, the indoor second-hand smoke flavor also disappeared. At the same time, due to the opening of negative ion function, Xiao Bian felt more fresh air in the room.
Summary: From the test of purification capacity, it can be seen that in the heavily polluted environment, the KJ801 air purifier of Leike dropped to a light pollution level after ten minutes of opening, and the air in the room was not turbid before. Health levels have been reached after 20 minutes of decontamination. Indoor air purification has been made clean enough to prove that this high CADR value is traceable, and the negative ion function is provided to make the air more fresh.
â— Air volume and noise test
Air volume test
Next, we will test the wind speed and use the four wind speeds 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. The KJ801 air purifier from Leica utilizes a twin-turbo design, with air intake on both sides and top air outlet for faster space purification.
Lake KJ801 air flow test
Sleep mode wind speed 1.57m/s Low mode wind speed 3.06m/s 
Mid-range model wind speed 4.12m/s High-end model wind speed 4.65m/s Noise test
Many consumers want their products to be as silent as possible, especially when they need to be muted at night. Both can filter without affecting normal evening sleep. This time, we also chose four gears to test. Because of the limited testing environment, we could not achieve the effect of the soundproof room, so we tested it in a 45dB office environment.
Lake KJ801 noise test
Sleep Mode Noise 46.7dB(A) Low Mode Noise 49.3dB(A) 
Midrange Mode Noise 52.5dB(A) Upscale Mode Noise 53.7dB(A) Summary: The output air volume of the KJ801 air purifier blower set of Lake is moderate, and the most impressive to Xiao Bian is that the blower output of this air purifier is very stable, and basically the value does not change much. In terms of noise tests, it was only 53.7dB (A) in high-end noise tests, which was far below the provisions in the new national standard.
â— Power consumption test
The air purifier must be used for a long time, so the power used is particularly concerned. This time we have selected five stalls for testing. Test them separately to see how much power they are working on.
Lake KJ801 Instant Power Test
Sleep Mode Power Consumption 10.69W Low Mode Power Consumption 24.39W 
Mid-range mode power consumption 40.77W High-end mode power consumption 49.55W Summary: From the power consumption test found that Lake KJ801 air purifier only 10.69W in sleep mode, for positioning in the high-end air purifier, is absolutely a performance-saving power. Even if it stays on for a long time, users do not need to worry about its power consumption.
The full text is summarized: Leike this KJ801 as the first product to pass the new national standard of air purifier, it has a CADR value of up to 840m3/h, while its formaldehyde CCM is as high as 10000mg, far exceeding the value of the new air purifier national standard. Through our real-world testing, we have learned that not only is the purification performance superior, its twin-turbine centrifugal fan brings about the effect of fast flowing air. As a high-end model, the KJ801 is slightly more expensive, but it is definitely the best choice for bad weather.
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