DEALS
PRELOVED
Breathe clean, breathe healthy Pet-hair and pollen filtration. OLED display. Effective coverage area of 35-60m²
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 ionisationForest-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 replacing
that pose a risk to your health
Cooking fumesPet odoursPollenDustSmokeDanderPet hair
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* 8330L All-round air intake 360° Effective coverage area* 35-60m² 
11min Approx. purification time for 30m² bedroom 15min Approx. purification time for 40m² living room
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.
PM2.5-PM10Detection of large particles
such as pollenIndoor monitoring for pollen, ash, spores, pet dander and plant
epidermis etc.PM2.5
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
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* 24000cm² High-quality activated carbon* 650000mg
Pet hair 
Pollen 
Dust 
Smoke 
Dander 
Cotton fibre 
A hero for animal loversPet hair and dander filtration
Care-free hay-fever seasonsPollen filtration
Xiaomi Smart Air Purifier 4pro can effectively reduce Escherichia coli / Staphylococcus aureus / Streptococcus pneumoniae in the air 
Odour elimination for lasting freshnessActivated carbon has a high adsorption rate, able to eliminate odours and keep your air fresh.
Pet odours 
Cooking fumes 
VOC 
Formaldehyde, toluene 
Other odours 
FCADR* 
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
Kick start your air purifier on the moveUse 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*
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.
Clean your purifier from the inside outTo protect the infants in your house, the top grille is screwed on and cannot be re
moved 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 2: Using a soft cloth, clean the air ducts and the fan blades
Step 3: Screw the grille back into place
Easy open and closeMagnetic-door design DurableWeather-resistant ABS body 
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.
- Noisy 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.
- Low noise 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.
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