Xiaomi Air Purifier 4
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Smart Air Purifier 4 ProBreathe clean, breathe healthy
Pet-hair and pollen filtration | OLED display | Effective 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, e.g. pollen
Negative air ionizationForest-quality fresh air
Smart controlMi Home/Xiaomi Home App + AI voice*
33.7dB(A) low noise*Night Mode for undisturbed sleeping
Filter replacement remindersAutomatic reminders for filters that need to be replaced
The air is filled with pollutants that pose a risk to your health
Cooking fumesPet hairPollenDustSmokeDanderPet odours
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*
Clean air that is visible with comprehensive monitoring and real-time displayPM2.5/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.
PM2.5-PM10 Detection of coarse particles such as pollenIndoor monitoring for pollen, ash, spores, pet dander and plant epidermis etc.PM2.5 Detection of fine particlesIndoor monitoring for small inhalable pollutants, such as invisible particles in smoke etc.Clean airLow-speed purificationDirty airHigh-speed purification
OLED displayIntuitive display, easy-to-control interface Intuitive 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, made from large-area high-efficiency filter and large volume high-quality activated carbon, can last 6-12 months. No need for frequent filter replacement.
High-efficiency filter expanded area*
24000cm²High-quality activated carbon content*
99.97% elimination of 0.3μm particles* Three-in-one filtration for high-efficiency purificationThe Xiaomi Smart Air Purifier 4 Pro features a three-in-one filter, including a primary filter, the Xiaomi's High Efficiency Filter and a high-quality activated carbon filter, which work together to purify your air and keep you healthy.
A hero for animal loversPet hair and dander filtration
Allergy season at easePollen filtration
High-quality activated carbon Odour elimination for lasting freshnessActivated carbon has a high adsorption rate, able to eliminate odours and keep your air fresh.
Negative air ionization Stale-air elimination to keep your home freshEnhanced air purification with dust cleaning that will make you feel as though you're in the forest.
Smart control Start your air purification anywhere anytimeUse the Mi Home/Xiaomi Home app to activate your air purifier on the move, so your home is fresh from the moment you arrive.
Filter replacement remindersSimply change your filter when recommended
Voice-control supportActivate your purifier with your voice*
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 a night of sound sleep.
Easy-to-clean removable top grille. Clean your purifier from the inside outTo protect the infants in your house, the top grille is screwed on and cannot be removed accidentally. 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 into place
An excellent user experience, it's in the details
Easy open and closeMagnetic-door design
DurableWeather-resistant ABS body
The difference between Xiaomi‘s 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's High Efficiency Filter
More clean air
Xiaomi's High Efficiency 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's High Efficiency 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 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).* Alexa and 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. * Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its affiliates. * Google Assistant and Amazon Alexa are not available in certain languages and countries. Availability of services varies by country and language.