On the afternoon of March 2, I suddenly received a text message from Lei Feng.com about the trial winning lottery. I was overjoyed and really felt that so many failures were worth it, and it was an on-board air purifier needed by smokers who did not consider others' feelings. I have to smoke two cigarettes on the bus every day, so I feel happy. But the next time I entered the car, the smell of smoke was really uncomfortable, so tangled... In addition to the moving smog in Beijing, the air purifier was put on the agenda. This time, Lei Feng.com had an air purifier on trial, so he filled in the report truthfully. Unexpectedly, he won the bid. Really sleepy gave a pillow, bang bang da.

It was sent from Guangdong. It was a hard journey. After many setbacks, it finally came to me. I still couldn't bear to open it in the office. As soon as I got home, I could not afford to eat, so I started unpacking. When I opened the express package, a very coarse grain kraft paper box appeared in front of me, feeling very simple and scientific. The front side is a very simple product name and color label, and the back side is a standard package with parameters and specifications.

Open the box, and the air purifier is wrapped in a plastic bag. Open the bag, and a Tuhao gold version of the air purifier comes into sight. It's amazing, not small, but very light. After getting started, the texture of the plastic shell is still slightly low-end, and when you press it with your hand at the seam, you will find that it is actually pressed in. The workmanship is not as solid as expected. Like a toy, it is flickering with a thin shell.

Take out the purifier, the following is the product manual, and then open the partition cardboard. Below is a data cable and a anti-skid pad. This is a purifier with wireless charging function. Unexpectedly, there is no free wireless charging receiver. However, the official link to Taobao Store is 99 soft coins. As a poor loser, I have to give up and buy again when there is an urgent need. Next is a family photo. A few simple items are enough. After all, all I need is air purification. As a matter of fact, the charging cable (not the data cable) delivered is also poorly made.

However, there was a big god in the qq group who used the PM2.5 tester to test and said in the group that there was no use except PM2.5, which aroused my curiosity. I decided to take this little guy apart. Before taking apart, I had read the instructions on Lei Feng's website several times, and there was no need to return things, so let's wait and start! After looking at the back of the machine, the four foot pads were actually plastic. It took a long time to remove one of them. I really didn't know what the manufacturer would do if it needed to be repaired

But smart like me, how can I surrender because of this? The mountain people have their own tricks. First, I use a small screwdriver to drill holes on the foot pads, and then use screws to take them out. The four foot pads are really not as smart as me. Then there are four small screws. It turns out that one screw is a little shorter than the others. I wonder if it will feel inferior

The next step is to open the shell. The upper shell is a wireless charging coil, and the lower shell is a circuit board, a blower, the legendary composite filter screen, and a negative ion generator.

The disassembly continues. When the quick plug is pulled out, the purifier is divided into two parts. I feel that the workmanship is so rough... At first, the feeling of being tall disappears

Unable to resist curiosity, I will continue to disassemble it to see what the coil looks like. The following is the transparent shield for fixing and protecting the coil and the coil diagram. Because they are not professionals, the model manufacturers can not see it, nor can they see the parameters. But a treasure and a baba have a lot to sell.

Now it's the bottom. Most of the components are here. Why won't PM2.5 change? Because the filter element is only 4x2.5cm, and there is no seal between the air outlet and the filter element.

Continue to disassemble. The next one is the circuit board. Remove three screws and it will be removed. By the way, you need to pull out the plug first. Same as above. I can't see the model manufacturer, but now there are many blue boards. Green boards look very low.

Continue, the negative ion generator of the fan filter element is displayed in front of us. First, look at the fan, which is made in Shenzhen , a manufacturer specializing in the production of fans, and the model of the secondary fan is , voltage 5V, see the link for specific parameters.

The next step is to introduce the anion generator, also produced in Shenzhen, with the brand of , the manufacturer is , the model is NB-J, interested friends can search the parameters by themselves.

The following is a lovely filter element. I don't know what the filter element can do. If it needs to be replaced, it is too troublesome. Besides, it is fixed with double-sided adhesive tape, which is good.

After disassembly, other trials are not very meaningful, and after seeing that there is no capacitor on the circuit board, I don't dare to charge the mobile phone directly. Because there is no mobile phone that can be charged wirelessly on hand, I stopped charging. I had a whim and tested the noise, so I have the following video. (The NPC and CPPCC sessions are really strict, and the videos are still being reviewed, which is really related to the national economy and the people's livelihood.)

Let's summarize this trial.

advantage:

1. Good appearance;

2. It can be charged wirelessly with new technology;

3. Light weight;

4. The noise is acceptable, which is called mute.

Disadvantages:

1. I don't know where intelligence is. If it's just wireless charging, it's still far away from intelligence;

2. Workmanship needs to be improved;

3. This function cannot be used without a complimentary wireless charging receiver;

4. The charging cable delivered is slightly low-end and only 80cm, which is too short;

5. The filter element is too small and replacement is not considered;

6. The shell is too soft, and the nail can draw traces;
   

7. The feet are made of plastic, which is not convenient for disassembly.

Suggestion:

1. Consider setting delayed shutdown;

2. Add air quality sensor, connect with mobile phone or add display screen;

3. Changing the switch to touch type will effectively improve the grade;

4. It is replaced with a plastic and metal shell to improve the hand feel.

Conclusion:

Have a look first If it is at this price, I will definitely not buy it, because the price of nearly 700 soft coins is enough to buy a Sharp or Philips car purifier. The manufacturer is suggested to consider the actual situation before setting the price. Although this trial may not show all the good parts of the product, isn't the real purpose of using it to expose the problem to consumers? I hope you will be satisfied.

Thank Zixiao Technology and Lei Feng.com for giving me the trust to complete this trial. I hope you will do better and make your contribution to the progress of domestic smart products.

Thanks again