Integrated 360° cylindrical  Premium HEPA Filter Effectively Eliminates 99.97% of Bacteria, Viruses, Cigarette Smoke, PM2.5, Pollen, Dust, Pet Dander, and Other Allergens

The three-layer filter effectively removes PM2.5, formaldehyde and other harmful substances

• The first layers removes hair, dust, cotton fibers and other large particles
• The second layer consists of a premium HEPA filter that effectively eliminates 99.97% of bacteria, viruses, cigarette smoke, PM2.5, pollen, dust, pet dander, and other allergens as small as 0.3 microns from the air. It is also effective towards finer particles of 0.1 microns.
• The third layer is an active carbon filter that absorbs formaldehyde, volatile organic compounds (VOCs) and other harmful gases

New Powerful Air Duct System Delivers 6330 liters of purified air per minute*

To increase the air output without changing the size of the air purifier, we had to carefully redesign every part of its air duct system.
We developed a rear-tilting centrifugal fan that can move air more powerfully and custom-made a new direct-current brushless motor.
The newly designed pressurized air duct and the air grille form an even more efficient airflow path, considerably boosting the purifier's performance.

OLED touch screen display Air quality at a glance, easy to use even at night

Simply tap the keys on the OLED display to work the purifier, and the reported info is viewable at a glance.
Room air quality data, the purifier’s operational status, etc., are all displayed clearly.
The tri-colored light ring quickly tells you the quality of the air in the room.

High-precision Laser PM Sensor Sensitively Detects Even Slight Pollution

The Mi Air Purifier 3H comes with a high-precision laser PM sensor that detects microscopic particulates and reports changes in room air quality in real time.
In auto mode, the purifier adjusts proactively for better cleaning.

APP+AI smart voice control* Smart Control, Linking Multiple Smart Products

With the Mi Home app, you can use your phone to keep track of your home’s air quality at all times. You can also control the air purifier remotely and set turn-on and turn-off times.
You can use the Favorite mode for highly efficient cleaning specifically geared for your space.
Supports Google Assistant so you can use smart AI voice control.

Quiet and energy saving
Keep the air purifier on 24 hours a day for good air quality

Even with its upgraded performance, the Mi Air Purifier 3H is still quiet. In sleep mode, the noise level is as low as 32dB(A)*. The high-efficiency direct-current brushless motor draws only 38 W of power.
When running 24 hours a day, it uses up to 1 kWh of power each day, even less than an energy-saving light bulb.  32dB(A) Noise as low as

Compatible with many types of Mi air purifier filters

• Mi Air Purifier Filter Antibacterial
• Mi Air Purifier Filter Anti-formaldehyde S1
• Mi Air Purifier HEPA Filter