The Double 11 shopping festival has come to an end, and Tmall officially announced sales of 168.2 billion yuan—equivalent to 168.2 billion miles in terms of scale. What products did you end up buying?
One of my friends who suffers from chronic rhinitis also emptied his shopping cart during the event—masks, air purifiers, and humidifiers.
Since last year, many of my classmates have been using professional testing methods to evaluate different brands and models of air purifiers. However, as more brands entered the market, it became increasingly difficult for consumers to distinguish between genuine quality and hype.
But here’s the thing: an air purifier is a simple device. The sooner you buy it, the better. The longer you run it, the more effective it becomes. So how can you quickly find the right one?
We follow a few basic principles: don’t worry about rare quality issues, avoid niche brands, skip the overpriced Japanese or Swiss options, and don’t overcomplicate things. We focused on three top-selling models, so you can save time before all the best purifiers are sold out.
**Xiaomi Air Purifier – Affordable, Available, “Disposableâ€**
The Xiaomi air purifier is priced at 699 yuan (599 yuan during Double 11), with a CADR value of 310 m³/h. It’s a cost-effective option.
Online reviews highlight both pros and cons: some say it has low dust capacity, others mention noise, and some claim it doesn’t reduce PM2.5. But what do you expect for just 699 yuan? Plus, Xiaomi was one of the few brands that consistently supplied units during Beijing’s severe smog on New Year’s Day. Even as an emergency solution, 699 yuan is worth it.
All the advantages of Xiaomi are centered around its price, which is why we don’t recommend the Xiaomi Purifier Pro.
Imagine this scenario: your office has poor air quality, and when smog hits, you can’t go outside. Do you want a purifier in your small office? Definitely Xiaomi. You might not be there next year, and if you buy another purifier, you’ll have to throw it away. Xiaomi is designed for short-term use. After a year, the filter will need replacing.
This applies not only to work settings but also to business trips. For example, if you’re doing a two-month interview at a traditional company without good ventilation, what do you do? Buy a Xiaomi purifier for 700 yuan, or risk getting a respiratory infection and spending 2000 on medical care?
“Cheap and disposable†isn’t just for laziness—it’s practical for DIY setups. In open offices, ensuring clean air around your desk is tricky. A single purifier won’t do much. Instead, you can buy a small unit and attach a plastic bag to the outlet, directing the airflow toward your face. This setup works well.
In conclusion, if you don’t modify your setup, a standard purifier won’t clean the air around your desk effectively. My friend remodeled his workspace and found that attaching a plastic bag to the purifier and directing the airflow near his face significantly improved air quality.
This shows the advantage of Xiaomi’s compact design—it’s ideal for duct setups.
Here’s how to do it:
- Buy a few PE plastic bags on Taobao.
- Attach them to the purifier’s outlet with tape.
- Cut the other end to fit near your nose.
Because the purifier’s auto mode reacts to air quality at the inlet, modifying it to target your face will make it run at high speed. Switch to low gear manually, so you get a gentle breeze that cleans the air around your face.
Always keep the big file and be careful not to get blown by the fan—similar to the principle behind this setup.
After doing this, the air quality near your face improves dramatically.
*Image source: Knowing that the Lord is happy*
Some users even use PVC fittings to create a more complete setup.
*Image source: Knowing the answer to the Lord Hou Xiang*
Place it under the desk like this:
*Image source: Knowing the answer to the Lord Hou Xiang*
If you own a Xiaomi smart speaker, you can ask Xiao Ai to turn the purifier on. No need to press buttons or use the app. Xiaomi recently added a feature where the purifier automatically turns on when air quality is poor.
Purchasing early is better than waiting. The sooner you start using it, the better. Don’t wait for smog to hit—buy a Xiaomi purifier now instead of suffering through weeks of polluted air.
**352 – The Big House Must Have**
While the Xiaomi purifier solves the problem of clean air at work, if you live in a large home—like a 130-square-meter flat or a 70-square-meter duplex—the 352 X80 is the only viable option for effective air purification.
The 352 X80 has a CADR of 750 m³/h, spins at 2,650 RPM, and delivers 1,180 m³/h of air.
*Image source: Jingdong 352 product page*
Officially, the noise level is 64 dB, but in real tests, the Xiaomi model running at 310 m³/h is actually quieter. That’s why Ronaldinho used an 800 CADR purifier at the popular breathing device conference on November 7th.
According to national standards, an 800 CADR purifier covers 56–96 square meters. While it may seem excessive for a single room, lower CADR purifiers tend to be noisier. The higher the CADR, the quieter the purifier tends to be.
Before Xiaomi entered the market, most purifiers came from Japan, suited for smaller homes with better air quality. Xiaomi was aimed at young people, making it ideal for single rooms.
However, before the release of the Hammer Breathing device, there were very few large-area purifiers (CADR > 700) available. As a result, 352 models sold out quickly last year.
If you live in a large open-plan apartment, buy 352 or Hammer quickly—don’t hesitate.
**Airx: Performance and Price Balance**
Airx offers a balanced combination of performance, noise control, and price. The Airx A7 costs $2,199, with a CADR of 500 m³/h and noise levels of 52 dB.
While the 352 X80 is powerful, it can be noisy in a bedroom. If you care about quiet operation, the Airx A7 with a CADR of 700 m³/h is a better choice.
Unlike the industrial look of the 352 X80, the Airx A7 has a sleek, home-friendly design. However, it has some drawbacks. The fan warranty is only one year, while the 352 offers five years. So, for long-term use in heavily polluted areas, 352 is more reliable.
To put it simply, an air purifier is just a filter and a fan. The filter needs replacing, and the fan determines the machine’s lifespan. Since all purifiers are essentially filters plus fans, you don’t need to overthink it. Early purchase is always better than late.
Of course, if you care about noise and aesthetics, you can invest in a more expensive model.
But based on experience, after Double 11, when heating starts in the north, you won’t have much choice left. So, now that you’ve made your decision, buy it now.
Comcn Electronics Limited , https://www.comencnspeaker.com