When it comes to Zojirushi, most of the products that come to mind are thermos bottles and electric pots. However, in view of the fact that domestic consumers often suffer from poor air quality due to the terrain and climate, the brand recently launched a new air purifier PU-AAF50 in China. . You and I all know that a purifier needs to have excellent filtration capacity. In addition to the filter that is the core of the main engine filter, the stable airflow formed by the main engine motor and the fan blades is also very important. Therefore, the PU-AAF50 model is very special for Zojirushi. Jointly developed with Nidec Co., Ltd., the world's largest comprehensive motor manufacturing company, and designed a two-return propeller fan based on aircraft and ship technologies, so that it can generate strong circulating airflow, and is equipped with a multi-faceted integrated sterilization filter. With the DC motor designed in Japan, it brings users a clean performance that takes into account both the purification power and the quiet operation.

●Appearance introduction

Zojirushi PU-AAF50 adopts a simple and square design in appearance. Although the appearance is square, considering the safety of use, the corners of the main unit are all rounded structures, and the body shell is made of fog that is not easily contaminated with dirt. Plastic, and the color scheme is a mild pure white with the bright silver of the air intake below. As for the size of 29.5 X 29.5 X 72.5 cm (width X depth X height), the CADR value is 186 ft?3;/min, and the applicable pings can reach 12 pings, which is a medium-sized cleaning machine.

The control part of PU-AAF50 basically relies on the operation panel on the upper right, using the form of physical buttons. The R&D team also provides 5 modes: standard, weak wind, mute, automatic and indoor dust, allowing users to choose freely. Among them, the indoor dust mode is quite special. It is specially designed for users who are particularly concerned about indoor dust and pollen. In the first 30 minutes of this mode, it will run at the strongest standard wind speed, and then it will be more sensitive than the automatic mode. The dust sensor adjusts the operating air volume by itself (the dirtier it is, the stronger it is), and the hole under the panel is the odor sensing port.

In addition to the basic fan speed mode, PU-AAF50 also has the function of time off and child safety lock. The timer stop button can make the host turn off automatically after 12 hours of operation, and the child safety lock will display the lock icon after pressing the timer stop button for about 3 seconds, indicating that the safety lock function is activated.

air outlet

Remove the top cover

Because the PU-AAF50 adopts a wrap-around air intake structure, the air outlet is located above the dead angle, and for the maintenance of the air outlet for a long time, the air outlet itself has a detachable upper cover as the air outlet. Maintain lines of defense.

right side of main unit

left side of main unit

The side of the host generally follows the same design as the front of the host. The R&D team also set the grip groove of the host here, and adopts the diagonal grip design on the left and right sides, so that the user can move the host more smoothly. Even if the host has a weight of about 10 kilograms, such a humanized handle design will really make people feel a lot easier.

dust sensor grey

Dust Sensor (On)

The bottom of the left side of the fuselage is also the position of the host dust sensor. The user can clean the sensor with a cotton swab depending on the situation. Sensitivity.

Back of the main unit

Warnings and Instructions

Generally speaking, the cleaning machine has three types of filter installation positions: front, bottom and back, while the square PU-AAF50 will choose to set the filter removal position on the back of the main unit, and the user only needs to remove the cover. The filter can be replaced, and the relevant instructions and reminder labels can also be seen on the back of the machine, including the specification information of the host and a brief introduction to the operating mode. This is also where the power cord is located. The PU-AAF50 adopts the design that the host and the power cord cannot be detached, but unfortunately there is no auxiliary structure for power cord storage.

Cover removal button

Inside the host 1

Inside the host 2

Replacing the filter screen also adopts a very simple operation form. Press the loading and unloading button on the upper part of the cover to easily remove the filter cover. At the beginning of the new machine, the filter screen is completely sealed as shown in the figure. Remove the packaging of the filter before it can be used.

The bottom design of the main unit is also quite simple, but the details are not omitted because of this. For example, the most important thing for the base is to ensure the stability of the main unit, so the PU-AAF50 is equipped with rubber anti-skid pads at the four corners to ensure the main unit. Stability during standing and running.

●Introduction to consumables

front of filter

filter top

In terms of filter screen, PU-AAF50 adopts a four-sided structure design, and each side is composed of three different filter screens of sterilization, activated carbon and high-performance electrostatic. The purple sterilizing filter is responsible for the isolation of environmental mold and bacteria, the activated carbon filter specializes in the removal of odors, and the high-performance electrostatic filter is used to deal with the remaining dirt of various tiny particles. According to the official test, the filter has an excellent effect of 99.9% in the removal rate of PM2.5, and the removal rate of finer 0.3µm dirt can also be as high as 99%. The filter itself is not washable, and according to the brand's statistics, the filter can be used for up to about 2 years under normal use.

Close-up of the inner layer of the filter

Filter inner layer connection

Because the filter screen matched with PU-AAF50 is a four-sided one-piece structure, the inside and outside of the filter screen are bonded with sealant to ensure a stable connection between each side of the filter screen. Foam, so that the host and the filter can be more tightly bonded.

Filter accessories

filter cover

Filter base

Filter installation instructions

In order to allow the filter and the host to be infinitely close and completely fitted, PU-AAF50 not only pays great attention to the details of the filter, but also comes with upper and lower frame accessories dedicated to the filter, allowing users to use it when installing the filter.

●Host actual measurement

On the day of the test, the editor placed the main unit in a confined space of about 6 pings. Before starting the machine, light the incense stick for 10~15 minutes, and then perform the actual measurement of the cleaning machine after it is extinguished. The strongest standard wind mode is selected throughout the purification test. In operation, in addition to testing the strongest cleaning effect of the host, it also tests the maximum power consumption of the host within 3 hours.

PU-AAF50 has built-in dual sensors of dust and odor. The dust sensor can detect PM2.5, cigarette particles, internal dust, pollen or tiny dust mite debris, and the odor sensor can detect oil smoke. , cosmetics, alcohol spray and other substances, the detection function can be said to be quite complete. In addition, on the panel, there are also quality indicator lights corresponding to two sensors. The change from extremely dirty to good will have three changes: red-orange-green. Users can intuitively understand the current indoor air quality. During the period, whether it is the smell of the incense stick and the dirt in the room, the two sensors can respond quickly. During the purification period, the detection lights will also change one by one.

Generally speaking, the air quality will start to be detected when the main unit is running. During the detection period, the dust and odor indicator will continue to flash, and it will stabilize after about 3 minutes. The status of the indicators is also the reference for the automatic mode adjustment mode. As long as one of the indicators is red, it will enter the strongest standard wind speed. When one of the indicators is orange, it will turn to weak wind. Both indicators are When green, it will automatically enter silent mode.

During the test, the editor also additionally used the PM2.5 detector to detect the value of space contamination. Under the circulatory filtration of the filter screen and the air outlet, the value of the PM2.5 detector quickly dropped to half of the initial state, and was After 2 hours, it reaches the value before the editor burns the incense stick. The fragrance of the incense line gradually begins to fade after the main engine runs for 1 hour. After running for about 2 hours, the fragrance of the incense stick is almost completely removed, although there is no peculiar smell on the panel. Or the value of volatile matter, but with the display lights corresponding to the two sensors of the host, users can fully feel that the PU-AAF50 can perform well in the purification of suspended particles and odors.

An excellent air purifier is not the strongest wind speed, but the best purification efficiency. The air purifier pays more attention to the convection design of the air intake and the air outlet, which also creates a lot of non-surround air intake or Cleaner models with smaller air outlets can still have good air purification efficiency. The wind speed test results of the PU-AAF50 should be the most surprising to the editor. Even in the strongest standard mode, the wind speed performance value is only about 2.0m/s. The wind speed is not strong, but it still has a good air filtration efficiency. , In addition to relying on the assistance of a powerful filter, the editor deduces that a two-return propeller fan has been designed using technologies such as aircraft and ships. The biggest contributor to excellent purification efficiency.

The operating volume is a highlight of the PU-AAF50 when it was launched. Of course, I also tested the volume of all wind speed modes. However, the automatic and indoor dust modes will adjust the wind speed according to the environment, and the air state will be different, and the volume will vary. The performance will also be different, so the volume test of these two modes is omitted here. Before the host is not running, the ambient volume of the tested room is at 35.6 decibels. According to the actual measurement, the strongest standard wind speed can be maintained below 50 decibels, and the weak wind is about 40 decibels. As for the silent mode, the operating volume and space The initial volume is quite close. Since the air volume is significantly smaller, it can be said to be almost silent. According to the editor, if you are a user who is very sensitive to sound, the weak wind and silent modes are good choices.

Finally, let's see the performance of the PU-AAF50's power consumption. As mentioned by the editor at the beginning, during the test period, the host was allowed to run at the strongest standard wind speed. According to the measurement, the running time of PU-AAF50 reached the 3rd hour, only 0.03 kWh of power consumption was used, and the energy saving performance was quite excellent. From the point of view of the purifier, the energy-saving performance of PU-AAF50 is still quite outstanding. The user can let it run as much as possible to help purify the indoor air according to the conditions of the space.

●Overall review

All in all, Zojirushi PU-AAF50 is an air purifier with fairly balanced performance. Although Zojirushi is not a home appliance brand that specializes in purifiers, PU-AAF50 has a longer history than other brands in the market that have developed purifiers. For the launched models, the diversity of modes and functions is indeed relatively simple, but it still masters the four aspects that cleaning machine users pay most attention to, such as cleaning effect, operating volume, data detection and energy saving. Coupled with the simple design of Japanese brands that have always been very textured, if you were a fan of Zojirushi products in the past, and you have a demand for an air purifier during the seasons, you might as well include it in your consideration list.