Xiaomi Smart Air Purifier 4 Pro Filter

Three-layer high-efficiency filtration to protect your health
PM2.5 and pollen filtration |Pet hair filtration |Odour elimination

Can only be used with Xiaomi Smart Air Purifier 4 Pro

All-in-one powerful filter Clean air outputs after layers of purification
A primary filter, Xiaomi's High Efficiency Filter and a high-quality activated carbon filter work together to purify your air and keep you healthy.

Primary Filter 360¡ large particles blocking
The primary filter provides an initial filtration by filtering dust, hair, fine crumbs among other large particles and is resistant to creases, oil, acids, alkalis and more to ensure a long service life.
Dust
fine crumbs
Pet hair
cotton fibers

Xiaomi's High Efficiency Filter 99.97% filtration of 0.3_m particles*
The 24000cm_ high-efficiency filter* removes PM2.5, pollen etc. to output consistent clean air.
0.1_m
0.3_m
PM2.5
Pollen
Pet dander

High-quality activated carbonThe 650000mg high-quality activated carbon*, with the sophisticated porous structure and evenly distributed carbon, effectively removes air pollutants and odour that are harmful in your home.
Pet odours
Cigarette smell
VOC
Cooking fumes

The difference between Xiaomi's High Efficiency Filter and conventional HEPA Filter
Combining two filter technologies: Electrostatic charge and mechanical filtration, Xiaomi's High Efficiency Filter media can remove 99.97% of airborne particles of 0.3 micrometers in size and traps dust, PM 2.5, pollen, pet dander, smoke and tiny particles. Compared to a conventional HEPA filter, Xiaomi's High Efficiency Filter allows the air purifier to generate less noise and consume less energy by allowing more airflow to pass through the filter all the while keeping the same cleaning efficiency.

Just one filter for up to one year's usage Everyday freshness with a long-lasting filter
Although the all-in-one filter is durable, the performance may gradually degrade over time. It is recommended to replace the filter every 6Ð12 months.

Mi Home/Xiaomi Home app connectivity Filter replacement reminders on smart devices
You can view the filter usage at any time on the Mi Home/Xiaomi Home app which estimates the filter replacement time based on your use.