Xiaomi Smart Air Purifier 4 Compact Air Purifier

Voice control support
Remote quality air call

*Alexa and Google Assistant voice control features require smart devices with voice control. Connectable devices sold separately.

One Touch Auto Mode
Real-time monitoring, high-efficiency cleaning
With the configuration of particulate matter sensor, precise monitoring of air quality and automatic adjustment of purification speed, you can always enjoy clean air.

Particulate matter sensor
Real-time detection of air quality changes

Real-time air quality monitoring
Keep an eye on changes for advanced cleaning
Intuitive indoor air quality data from four-color indicator lights. Adjust your cleaning settings with simple touch control buttons. One touch is all it takes to meet your air quality needs.

Customized cleaning area
Choose the most suitable speed in one step
In manual mode, you can adjust and customize the coverage area and speed according to your preference.

Clean air with ultra-quiet sleep mode
Protect your dreams
In Sleep Mode, noise is as low as 20dB* and the backlight can be turned off. Get an uninterrupted, peaceful night's sleep.

Low consumption cleaning, effective protection
Even at maximum output, power can be as low as 27 W. Only 0.7 kWh is required for 24-hour cleaning*.

Efficient brushless DC motor
The absence of carbon brush friction makes the device quieter and more energy efficient.

A perfect user experience is in the details
Effortless one-step filter replacement
Turn and pull out from the bottom

Filter change reminders
Simply change your filter when recommended

Stylish look
Matte texture, elegant lines

Difference between Xiaomi's High Efficiency Filter and a traditional HEPA Filter
Combining two filter technologies: electrostatic and mechanical filtration. Xiaomi's High Efficiency Filter media can remove 99.97% of particles as small as 0.1 micrometers in the air, capturing dust, PM 2.5, pollen, pet dander, smoke, and even the smallest microplastics. Xiaomi's High Efficiency
The filtration rate of the filter media is 99.97% for fine particles down to 0.3 microns, and can reach up to 99.99% for particles down to 0.1 microns.

Conventional HEPA filter
Less fresh air
A HEPA filter is made of dense fiberglass fibers to trap particles, which means less clean air passes through the filter.

Noisy
Large volumes of air are passed through the dense HEPA filter, which means a higher fan speed is required, which creates more noise.

Higher energy usage
In order for the HEPA filter to deliver more clean air, the motor must run at a higher speed, which means higher energy consumption.

Xiaomi High Efficiency Filter
More fresh air
Xiaomi's filter uses melt-sprayed PP fibers with electrostatic technology. More space between the fibers allows larger volumes of air to pass through the filter.

Low noise
With lower fiber density, the filter allows air to pass through at higher speeds, resulting in less noise.

Lower energy usage
With lower fiber density, Xiaomi's filter can output the same volume of clean air as a traditional filter with much lower energy consumption.