Xiaomi Mi 3H Smart Air Purifier - Review (Performance Test and Smoke Box)

Xiaomi Mi 3H is one of the most innovative air purifiers on the market. It has many advanced features, but that is not all. This air purifier also has excellent performance, and I am sure it will clean the air in any room you like.

👉 Check out the full contextual review of the Xiaomi Mi 3H here:

If you have any questions or concerns about the Xiaomi Mi 3H air purifier, feel free to use the comment box.

Disclosure: Air Purifier First is supported by readers. When you buy through the links in the video description, I may earn a commission. As an Amazon Associate I earn from qualifying purchases.

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⏰ TIMELINE
0:00 Intro
0:37 Setup and Installation
1:12 Design
1:56 Airflow
2:23 OLED Screen
3:30 Xiaomi 3H Sensors and Indicators
4:28 Xiaomi Mi Home Smart App
5:41 Xiaomi Mi 3H Filtration
6:53 How to Replace Filters on Xiaomi Mi 3H?
7:59 Noise Test
9:05 Operating Costs
9:59 Performance Tests
10:56 Smoke Box Test
11:14 Final Thoughts

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✅ Interested in in-depth research? Check out our contextual review here:

If you have any questions, please let us know in the comments.

[EnnTomi]

i use it as a fan too lol, since the unit doesnt have gyro or tip over sensor, it still works even if it is on its side, so during summer (as it is now here), i can just point the top at my bed put it side way, the best part is you can schedule it in the app so ill have a nice comfortable night while have little to none noise. i know it is a bit of stretch, but works.

[parohinognoel]

Thank you sharing in-depth review about this. I bought one of this today.

[patrickstar]

I have one. First it was ok. The active carbon layer did absorbed the smell, but also trapped the smell and releasing some sort of leftover odor from it overtime. Personally feel its not recommended if you have it functioning 24hrs or placing it near kitchen space. It will absorb cooking odor or food smell but the smell trapped in between the layers will stay and lingers overtime. You will need to change the filter in less than 3 months. However, for bedroom clean air effect, this works fine.

[rakamaka]

I have a problem with the Xiaomi Home application, in the application I only have the filter tab and that's it, there is no information about how much filter is used, I only see this information on the purifier's display when it is turned on, is it normal?

[doanvanthang]

Thank you for your review. How about the Xiaomi Air Purifier 4 Pro? It has many upgrades compared to 3H like larger filters, and more activated carbon. I can't wait to see it compared to Coway AP-1512HH

[peqghgk]

awesome review, but props for the pronunciation of the brand name, even the seperation between the two words

[arifsatria]

Is it available for filtering dust mites to? And what would you choose if it compared with mi 4 lite?

[luisrazormax]

Hi sir, thanks for your video because helps me to choose the best for me. i have ordered one unit xiaomi 3h last night. tq sir.

[teguharief]

Hi, which is better, this (3H) or the newest xiaomi air purifier 4 lite?

[benjmuller]

It is a Filter class H13 an not an TrueHEPA?

[ciprianlupsa]

best review of this product, thanks for the insight!

[joustindarmanta]

Please give me advice. Xiaomi 3H or Philips AC1215 ? Please..

[muslihatkedua]

hi which one you prefer this xiaomi MI 3h or philip air purifier ac0820 ?

[reysan]

i just bought one and i am so satisfied

[balkodawgie]

Hi. Does it always have to be connected to an internet to be able to control the Fan Speed manually?

[Tonymadbon]

I am so happy seeing your video. Really helped me a lot!!! 😊

[twentytwo]

Can you please tell me what kind of smoke did you use in the box? Was it real cigarette smoke or vaporizer?
I'm asking because i want to buy an air purifier so i can smoke in my house. I'm planning to place it on my computer desk, and turn it on everytime i smoke a cigarette. I smoke a pack daily, so around 20 cigarettes, and i would turn the device on for around 10 minutes everytime. Do you think the filter will last me at least 6 months this way, or possibly more?
Will the purifier collect the smoke immediately if it's close around 50cm? Or would you suggest me another kind of purifier? Thanks!

[rockym]

Is this better than pro breeze 5 stage purifier?

[smokinjoeblues]

I have this purifier and love it. One question: how do I clean the top (the fan)?