mart Air Purifier 4 Pro
Breathe clean, breathe healthy
Pet-hair and pollen filtrationOLED displayEffective coverage area of 35-60m²
15min purification for a living
room of approx. 40m²8330L of purified air per minute*
60m² large effective coverage area*Large living rooms/bedrooms/offices
Three-in-one filter99.97% filtration of 0.3μm particles*
Odour elimination650,000mg high-quality activated carbon*
PM2.5/PM10 dual-effect sensorLarge-particle monitoring,
Negative air ionisationForest-quality fresh air
Smart controlMi Home/Xiaomi Home App + AI voice*
33.7dB(A) low noise*Night Mode for
remindersAutomatic reminders for
filters that need replacing
The air is filled with pollutants
that pose a risk to your health
Cooking fumesPet odoursPollenDustSmokeDanderPet hair
Full-room purification in the time
it takes to read a bedtime storyXiaomi Smart Air Purifier 4 Pro has a Particle CADR of up to 500m³/h*, and is able to release 8330L* of clean air per minute. The purified air is able to reach every corner of your home, so you and your family can breathe healthy all the time.
Clean air output per minute*
All-round air intake
Effective coverage area*
Approx. purification time for 30m² bedroom
Approx. purification time for 40m² living room
Visible air quality with comprehensive
monitoring and real-time dataPM2.5/PM10 dual-effect laser sensorTargeted purification that leaves
pollutants with nowhere to hideComprehensive monitoring of air-quality changes for more targeted, efficient purification. In Auto Mode your purifier monitors real-time air quality and automatically adjusts the purification speed.
Detection of large particles
such as pollenIndoor monitoring for pollen, ash, spores, pet dander and plant
Detection of small particlesIndoor monitoring for small inhalable pollutants, such as invisible
particles in smoke etc.aClean airLow-speed purificationDirty airHigh-speed purification
OLED displaySimple purification with accessible dataIntuitive indoor air-quality data with the real-time PM2.5/PM10 display and colour-coded light strip. Adjust your purification settings with the simple touch control buttons,
one light touch to fulfil your air-quality needs.
Fresh and cleanLow pollutionModerate pollutionHigh pollution
Just one filter for up to one year's usage
Everyday freshness with a long-lasting filterThe filter is highly efficient, made from large-area filter paper and with a high content of high-quality activated carbon. Long-lasting filter performance means less replacements,
with one filter lasting 6-12 months.
High-efficiency filter paper for
a larger surface area*
High-quality activated carbon*
TÜV Rheinland Allergy Care Certification Strict allergen filtration guaranteedCertified by the authoritative TÜV Rheinland,Xiaomi Smart Air Purifire 4pro is proven to effectively filter out allergens in the air
A hero for animal loversPet hair and dander filtration
Care-free hay-fever seasonsPollen filtration
Xiaomi Smart Air Purifier 4pro can effectively reduce H1NI virus in the airXiaomi Smart Air Purifier 4pro can effectively reduce Escherichia coli / Staphylococcus aureus / Streptococcus pneumoniae in the air
Formaldehyde removal improved by 160%* Eliminate invisible threats and protect your lovedThe powerful filter removes harmful gases including formaldehyde and toluene to clean your air for better breathing
Low-noise 33.7dB(A) Night Mode*
High-quality air that leaves you to sleep undisturbedSwitch to Night Mode to turn off display luminance for no-glare, no-noise purification.
Your purifier will keep air circulating, providing you with the perfect environment
for some undisturbed shut-eye.
Easy-clean air ducts
Clean your purifier from the inside outTo protect the infants in your house, the top grille is screwed on and cannot be re
Unscrew and remove the grille for easy access to the fan blades and air ducts.
Clean the inside of your purifier to prevent secondary pollution.*Make sure the device is switched off before taking any of the following actions.
Step 1Unscrew and
remove the grille
Step 2Using a soft cloth, clean the air
ducts and the fan blades
Step 3Screw the grille back
An excellent user experience,
it's in the details
Easy open and closeMagnetic-door design
DurableWeather-resistant ABS body
The difference between Xiaomi High
Efficiency Filter and conventional HEPA FilterCombining 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.
Conventional HEPA Filter
Less clean air
HEPA filter is made of dense fiberglass to trap particles, which means that less clean air get through the filter.
Large volume air is forced to get through a dense HEPA filter, requires higher fan speed, which will generate higher noise.
Higher energy consumption
In order to get more clean air, HEPA filter requires the motor to run at a higher speed, which causes higher energy consumption.
Xiaomi High Efficiency Filter
More clean air
Xiaomi filter integrated melt-blown PP fibers with electrostatics technology equipped with bigger fibers space, which enables a large volume clean air to get through the filter.
Less dense fibers filter is easy to have the air passed even in a high speed, which results in much lower noise.
Lower energy consumption
Thanks to a less dense fibers filter, Xiaomi filter consumes less energy to achieve the same volume clean air.
*The filter media performance is tested by China Testing & Inspection Institute for Household Electric Appliances based on GB/T 6165-2021 standard. (Report Number: WCv-21-40115). Due to the technical specifications of the filter media, the test environment and parameters may differ.
* 500m³/h Particle CADR: Data from China Testing & Inspection Institute for Household Electric Appliances Inspection. Tested based on GB/T 18801-2015 standard. Report No. WCk-21-50469.* 8330L of purified air per minute: Refers to the clean air output when the product is operating at maximum output. Calculated based on the PM CADR of Xiaomi Smart Air Purifier 4 Pro.* Effective coverage area of 35-60m²: Data from China Testing & Inspection Institute for Household Electric Appliances Inspection Report (No. WCk-21-50469).* 15min purification for a living room of approx. 40m²: In a bedroom of 40m², with a ceiling height of 3m when the device is running at maximum output, a single-cycle purification time is calculated by: room area x room height ÷ PM CADR. On this basis, an 11min approx. single-cycle purification time is calculated for a bedroom of 30m².* High-efficiency filter paper for a larger surface area of 24000cm²: The surface area of filter paper used on the high-efficiency filter of Xiaomi Smart Air Purifier 4 Pro was 24000cm². Data from Smart Mi Lab, and may vary slightly due to differences between individual products.* High-quality activated carbon content of 650,000mg: The activated carbon content of the filter used on Xiaomi Smart Air Purifier 4 Pro is 650,000mg. Data from Smart Mi Lab, and may vary slightly due to differences between individual products.* 99.97% elimination of 0.3μm particles: Data from China Testing & Inspection Institute for Household Electric Appliances Inspection. Tested based on GB/T 6165-2021 standard. Report No. WCv-21-40115.* Low-noise 33.7dB(A) Night Mode: Refers to the noise value generated when the product is in Night Mode. Data from the China Testing & Inspection Institute for Household Electric Appliances Inspection Report (No. WCk-21-50469).* Google Assistant voice control features require smart voice devices to function. Related connecting devices are sold separately. * Google and its related logos are trademarks of Google LLC. * Google Assistant is not available in certain languages and countries. Availability of services varies by country and language.