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🌬️ Air purifier
Brand: Xiaomi
Xiaomi Mijia Air Purifier 4 Compact
Room air purifier, CADR 230 m³/h
7.5/10
Our editorial score
Good — right for the specific buyer
A small bedroom, study or home office
- Filtration
- —
- CADR
- 230 m³/h
- Coverage
- 100 sq ft
- Noise
- 20 dB (lowest setting, as listed)
About this air purifier
- CADR of 230 m³/h, enough for roughly 100 sq ft
- 20 dB on its lowest setting — quiet enough for a bedroom
How it scores
Purification7.1
Build quality7.0
Value for money8.4
Running cost8.0
Service network7.0
How to read our recommendations: comparisons use published specifications, listed prices and editorial assessments. Scores are not measured performance results. Our lab section publishes protocols; it currently has no completed test results. Prices and availability can change after the check date shown. Research and scoring method · Affiliate disclosure.
Catalogue listing — not a hands-on review
We have not tested this unit. The specifications below are parsed from the manufacturer's own listing, the features are their wording, and the score is calculated from those specifications rather than assigned by an editor. For models we have examined in depth, see our ranked air purifiers guides.
About this model
The Xiaomi Mijia Air Purifier 4 Compact is an air purifier selling for ₹6,990 on Amazon.in (MRP ₹11,999, so 42% off on the day we checked). That is well under the ₹14,890 typical for a air purifier in this catalogue.
The number that matters here is its CADR: 230 m³/h. A rough rule is that this cleans a room of about 100 sq ft five times an hour, which is what you want for PM2.5 in a bedroom.
Source: the Amazon.in listing (ASIN B0HCZ1W1SN), checked 12 October 2026. Nobody here has used this purifier. Treat the price as a snapshot; the specification is what the seller publishes.
Manufacturer's stated features
- CADR of 230 m³/h, enough for roughly 100 sq ft
- 20 dB on its lowest setting — quiet enough for a bedroom
Worth noting
- The listing does not state a HEPA grade
- Filters are a running cost — budget for a replacement set every 6–12 months in Indian winters
When this is not a good choice
Every condition below is derived from this product's published specifications and from how it compares with the air purifiers we track — so you can check each one against your own room, supply or budget rather than take our word for it.
Your room is bigger than about 50 sq ft
It is rated for 100 sq ft, but that assumes roughly one air change an hour. For visible results in Indian winter conditions, halve it — which puts the realistic ceiling near 50 sq ft.
Work out the CADR you need →You are trying to remove smells, smoke or gases
No meaningful activated-carbon stage is fitted. HEPA captures particulate and does nothing whatsoever for gases and odours — this is the most common mismatch in the category.
Purifiers with real carbon filtration →You want to verify it is working rather than trust it
There is no numeric PM2.5 readout. A colour ring cannot tell you the room went from 180 to 22 µg/m³, and it cannot tell you the filter is exhausted.
You live outside a metro or a major service town
Xiaomi's service network is rated good rather than excellent. Filter availability and callout times are what decide whether a purifier is still running in five years, and they are worth checking for your pin code before you buy.
How we score service reach →
Full specifications
| Type | Room air purifier |
|---|---|
| CADR | 230 m³/h |
| Rated room size | Up to 100 sq ft |
| Noise | 20 dB (lowest setting, as listed) |
| Power | 27 W |
Specifications are from manufacturer literature and were checked at the last price-verification date. Brands occasionally revise stage counts, tank sizes and warranty terms without changing the model name — confirm against the current listing before purchasing.
About Xiaomi
The value king. Xiaomi's Smart Air Purifier line delivers HEPA filtration, high CADR, an OLED display and full app control at roughly half what European brands charge. Filters are cheap and easy to find, which is what actually determines whether a purifier stays in use.
Service: goodPrice band: budgetHQ: Beijing, China
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