Anti-bacterial coating for effective disinfection and mould prevention

Mould inhibitor | Pollen removal | Pet hair and dander interception

Only applicable to Xiaomi Smart Air Purifier 4 Compact

*It is recommended to replace the filter every 6–12 months.

Integrated filter Layers of filtration achieve clean air output

The primary filter, anti-bacterial coating, Xiaomi's High Efficiency Filter, and high-quality activated carbon filter work together to purify the air and keep you healthy.

Primary filter

Anti-bacterial coating

Xiaomi's High Efficiency Filter

High-quality activated carbon

Anti-bacterial coating Kills 99.98% of bacteria

The anti-bacterial coating effectively neutralises some bacteria adhering to the filter surface, preventing mould growth and disinfecting the air, ensuring that the air in your home remains fresh and safe.

99.98%

protection against E. coli*

99.99%

protection against S. aureus*

Grade 0

The anti-bacterial coating boasts a grade 0 anti-mould rating*

Grade 0 anti-mould rating Effectively inhibits mould growth

Mould growth level (%)

The anti-mould rating of this product's anti-bacterial coating

Anti-mould grade

Grade 4

Grade 3

Grade 2

Grade 1

Grade 0

*The graph is for illustrative purposes only and does not represent actual test results.

Primary filter 360° interception of large particles

The primary filter traps dust, hair and fine debris, among other large particles, and is resistant to bending, oil, acids and more to ensure a long service life.

Dust

Fine particles

Pet hair

Lint

Xiaomi's High Efficiency Filter 99.97% elimination of 0.3μm particles*

Removes allergens such as PM2.5 and pollen for continuous clean air output.

0.1μm

0.3μm

PM2.5

Pollen allergens

6–12 months long-lasting filter For everyday freshness

Although the all-in-one filter is durable, its performance may gradually degrade over time and, therefore, it is recommended to replace the filter every 6–12 months.

Xiaomi Home app connectivity Smart filter replacement reminders

You can monitor the filter status at any time on the Xiaomi Home app, allowing you to estimate when the filter should be replaced based on your daily usage.

Rotate and pull out from the bottom Effortless filter replacement

Make sure the device is switched off before removing the filter.

*99.98% protection against E. coli and 99.99% protection against S. aureus data comes from CHEARI (Beijing) Certification & Testing Co., Ltd. The anti-bacterial coating used in this product has a protection rate higher than 99.98% against E. coli and higher than 99.99% against S. aureus. Report no.: WCk-24-50020.

*The anti-bacterial coating grade 0 anti-mould rating data comes from CAS Testing Technical Services (Guangzhou) Co., Ltd. Report no.: JKK19110058.

*99.97% elimination of 0.3μm particles: According to the China Testing & Inspection Institute for Household Electric Appliances inspection report (No. WCv-21-40115), the filter material used for this product achieved a filtration efficiency of 99.97% for 0.3μm particles.