Xiaomi Smart Air Purifier 4 Pro
Not sold at any shop we monitor today, so not in our ranking.
Which robot is right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
No shop here sells this model today, so beside it the highest-scored model for the same room size that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model Xiaomi Smart Air Purifier 4 Pro | Highest score here Clean Air Optima CA-503 Compact Best on 3 facts | Cheapest of the top 10 Xiaomi Smart Air Purifier 4 Compact | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | – | 132 €OTTO best | 189 €OTTO |
| Score | best | ||
| Rank | – | rank 1 of 1 for small rooms | rank 2 of 2 for medium rooms |
| Customer rating | – | – | – |
| Room size | |||
| Room size | open-plan spacesup to 60 m² | small roomsup to 30 m² | medium roomsup to 27 m² |
| Size, noise and age | |||
| Height lower is better | 68 cm | 27.4 cm best | 35.5 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.
Xiaomi Smart Air Purifier 4 Pro specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Consumables: The filter lasts about 6 months.
Cleaning performance 4 facts
- Clean air delivery rate (CADR)
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.
- 500 m³/h
- CADR measured to
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
- GB/T 18801 (Chinese standard)
- Room size we compare on
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.
- 42 m²
- Room size the maker claims
The room size the maker states. Makers use different rules, so we show it but never rank on it.
- 60 m²
Filter 4 facts
- HEPA filter class
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.
- Not stated
- Filter layout
Whether the particle and carbon layers are one filter or separate ones. Separate filters let you replace only the part that is spent.
- One combined filter
- Activated carbon filter
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
- yes
- Replacement filter part number
- M15R-FLP-GL
Running costs 1 fact
- Filter life
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
- 6 months
Noise and power 3 facts
- Noise at the lowest speed
The sound level at the lowest speed, as the maker measures it.
- 34 dB
- Noise at the highest speed
The sound level at the highest speed, as the maker measures it.
- 65 dB
- Power at the highest speed
The power the purifier draws at its highest speed.
- 50 W
Air quality sensing 3 facts
- Air quality sensors
What the purifier measures in the air. A particle sensor lets it speed up and slow down by itself.
- PM2.5, PM10, Temperature, Humidity
- Particle sensor
- Laser
- Automatic mode
The fan speed follows the air quality the sensor reads.
- yes
Smart features and warranty 2 facts
- Voice assistants
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant
- Matter
Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
Build 5 facts
- Shape
- Tower
- Height
How tall the purifier is. It decides whether it fits on a shelf or under a window sill.
- 68 cm
- Width
- 275 mm
- Depth
- 275 mm
- Weight
What the purifier weighs. It counts most if you move it from room to room.
- 6.8 kg
Warranty and certification 1 fact
- Maker model numbers
- AC-M15-SC
Sources: mi.com
Our score
Confidence: medium. A CADR the maker states itself, or fewer than 300 owners’ ratings. The highest score today is 7.0.
-
Owners’ ratings 40%–
Owners’ ratings, 40%: none yet at the shops that deliver to Germany, so this part is left out and the score is the features part alone.
-
Features 60%2.3
14 of 60 points for the maker’s and the registers’ facts.
- Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
- No CADR, no rankOnly air purifiers with a known CADR are ranked. The rest get a provisional score.
- Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.
Frequently asked questions about the Xiaomi Smart Air Purifier 4 Pro
What size of room is the Xiaomi Smart Air Purifier 4 Pro for?
The Xiaomi Smart Air Purifier 4 Pro is sized for a room of about 42 m², the room size we compare it on. Its clean air delivery rate (CADR) is 500 m³/h, measured to GB/T 18801 (Chinese standard).
How often does the Xiaomi Smart Air Purifier 4 Pro need a new filter?
The maker gives the filter a life of 6 months.
How loud is the Xiaomi Smart Air Purifier 4 Pro?
The maker states 33.7 dB at the lowest speed and 65 dB at the highest.
