Its CADR is not known yet, so it is not in our ranking.
Is the Xiaomi Smart Air Purifier 4 Compact right for your home? Find out in 7 questions →
Beside it, two models on sale today that come closest to it on score and price, for the same room size where we have them.
Green is the best of these 3, also when they share the lead.
| This model Xiaomi Smart Air Purifier 4 Compact Best on 1 fact | Higher score, 23% cheaper Winix T500 Wifi Best on 1 fact | Higher score, 261% dearer Venta AP735 AeroStyle Compact Best on 1 fact | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | € 89Xiaomi (brand store) | € 69bol.com best | € 325Expert |
| Score | not in our ranking | best | |
| Rank | – | rank 4 of 4 for medium rooms | rank 1 of 4 for medium rooms |
| Customer rating | – | – | – |
| Room size | |||
| Room size same on all | medium rooms | medium rooms | medium rooms |
| Size, noise and age | |||
| Height lower is better | 35.5 cm best | 37 cm | 44 cm |
| On the market since | – | – | – |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
On 17 October 2026 the lowest price for the Xiaomi Smart Air Purifier 4 Compact is € 89 at Xiaomi (brand store), delivery to the Netherlands included.
All prices include VAT and delivery to the Netherlands. We may earn a commission when you buy through these links. It never changes our ranking.
Xiaomi (brand store)white 
bol.comwhite sold by a third-party seller * Shop abroad: delivery and VAT are our estimate. Returns are the shop's own terms, a marketplace seller sets its own. Tap a return term to read the shop's policy. Let your browser translate it.
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Running cost: Filters: about € 59 a year at today’s prices.
Consumables: The filter lasts about 6 months.
How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.
The room size the maker states. Makers use different rules, so we show it but never rank on it.
How fine the filter is. True HEPA and H13 catch at least 99.97% of particles at 0.3 microns. HEPA-type is a weaker claim with no test behind it.
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
The sound level at the lowest speed, as the maker measures it.
The sound level at the highest speed, as the maker measures it.
The power the purifier draws at its highest speed.
What the purifier measures in the air. A particle sensor lets it speed up and slow down by itself.
The fan speed follows the air quality the sensor reads.
Which voice assistants the robot works with, such as Google Assistant or Alexa.
How tall the purifier is. It decides whether it fits on a shelf or under a window sill.
What the purifier weighs. It counts most if you move it from room to room.
Sources: mi.com
The Xiaomi Smart Air Purifier 4 Compact is sized for a room of about 19 m², the room size we compare it on. Its clean air delivery rate (CADR) is 230 m³/h, measured to GB/T 18801 (Chinese standard).
The maker gives the filter a life of 6 months.
The maker states 20 dB at the lowest speed and 60 dB at the highest.
