In this Xiaomi 2H vs 3C review, we will compare two of the most popular Xiaomi air purifiers on the market that will help you clean your indoor air from PM 2.5 and other pollution.
Xiaomi 2H
Xiaomi 3C
Coverage Area
18 – 31 m²
22 – 38 m²
Coverage Efficiency
86 m²/h
106 m²/h
CADR (Particles)
260 m³/h
320 m³/h
CADR (Formaldehyde)
60 m³/h
60 m³/h
Working Noise
33 – 66 dB
31 – 61 dB
PM 2.5 Sensor
Yes
Yes
Comparison: Xiaomi 2H vs 3C – What are the Differences?
Coverage Area & Efficiency
Both Mi Air Purifiers in this comparison are geared towards small or middle-sized rooms. With a coverage area up to 31 m², the 2H is a bit less powerful than the 3C and its coverage area of 38 m².
The 2H circulates 86 m² of clean air in one hour, meaning it would take about 10 minutes to replace the air within a 21 m² room with a height of 2.4 m. The 3C on the other hand manages up to 106 m² per hour.
Winner: 3C
18 – 31 m²
22 – 38 m²
Clean Air Delivery Rate
The 2H removes particles such as PM 2.5 from the air at a rate of 260 m³/h, while the 3C even reaches up to 320 m³/h. Both devices eliminate 99.97% of particles as small as 0.3 μm with their High Efficiency Filter.
Winner: 3C
260 m³/h (Particles), 60 m³/h (Formaldehyde)
320 m³/h (Particles), 60 m³/h (Formaldehyde)
Working Noise
Using advanced aerodynamics and a custom Japanese-made brushless motor, the 2H generates a maximum of 66 decibels (dB) of noise and drops to just 33 dB on its lowest speed level. While that is already extremely low, the 3C is even less noisy (if only for a few dB).
Winner: 3C
33 – 66 dB
31 – 61 dB
Sensors & Display
Both devices are equipped with air quality, temperature, and humidity sensors. While the 2H uses infrared technology for measuring, the 3C relies on more accurate laser technology.
Unlike the 3C, the 2H also lacks a display. This makes you dependent on the Mi Home app (see below) to get information about the current air quality.
Winner: 3C
Infrared / None
Laser / LED
Connectivity & Compatibility
Both devices can be connected to your smartphone via Wi-Fi. Using the Mi Home app, you can access real-time information about the air quality in your room, switch the purifier on and off and make adjustments – even when you are away from home.
Furthermore, the two air purifiers are also compatible with Google Assistant and Alexa.
Winner: Draw
Yes / Google Assistant, Alexa
Yes / Google Assistant, Alexa
Weight & Dimensions
Before we end this Xiaomi 2H vs 3C comparison, let’s have a quick look at the size and weight of both devices. While having the exact same dimensions at 240 x 240 x 520 mm, the 3C weighs around 0.6 kg less than the 2H and therefore a bit easier to move.
Winner: 3C
240 x 240 x 520 mm, 5.2 kg
240 x 240 x 520 mm, 4.6 kg
Conclusion: Xiaomi 2H or 3C – Which is the Better Air Purifier?
Unsurprisingly, the Mi Air Purifier 2H could not quite keep up with its successor in our comparison. That said, if you only have a small room, don’t mind the missing display, and would like to save some money, it is still a great choice.
But if you are looking for a more advanced air purifier, you should definitely go with the Mi Air Purifier 3C. It is suitable for bigger rooms and has a higher Clean Air Delivery Rate (CADR) than the 2H while still being quieter.
Xiaomi 2H
Xiaomi 3C
To find out how the Mi Air Purifier 2H fares against its direct successor, read our comparison Xiaomi 2H vs 3H.