Archive · 7 Oct 2026
Xiaomi Mijia Smart Air Purifier 4 Compact Review
The Xiaomi Mijia Smart Air Purifier 4 Compact is a small machine that cleans air indoors.
It weighs 2.2 kilograms, so it is easy to move between rooms.
Its filters are designed to catch dust, pollen, smoke, and other particles, and to help reduce smells.
You can control it with buttons or the Xiaomi Home app.
It also works with Google Assistant and Amazon Alexa.
In the review, its indicator took about 15 to 20 minutes to change from red to green in Auto mode.
Sleep mode turns off the display and runs quietly.
The reviewer says it is a useful budget option, but its app does not show detailed air-quality readings or a history.
The reviewer also cautions that clean air may not circulate as effectively in larger rooms.
The 2.2-kilogram purifier is designed for smaller rooms and costs Rs 7,999.
It offers app control, scheduling, voice-assistant support, and Auto, Sleep, and Manual modes.
Its three-layer filter combines a pre-filter, HEPA filter, and activated carbon layer.
The reviewer observed the air-quality indicator change from red to green in about 15–20 minutes in Auto mode.
The review praises its portability and low power rating, but notes limited air-quality data and potentially less effective circulation in larger spaces.
- Who
- Xiaomi, which makes the Mijia Smart Air Purifier 4 Compact.
- What
- A review assesses the purifier's design, features, filtration, performance, and value.
- Where
- The purifier is intended for indoor spaces, including studies, offices, bedrooms, and living rooms.
- Why
- The review evaluates whether it is a practical, affordable air purifier for smaller spaces.
- Price
- Rs 7,999
- Weight
- 2.2 kg
- Particle CADR
- 230 m³/h
- Power rating
- 27 W
- Filtration
- Pre-filter, HEPA filter, and activated carbon layer
- Reported purification time
- About 15–20 minutes for the indicator to change from red to green in Auto mode
- Room coverage
- Xiaomi claims coverage of more than 400 sq ft; the reviewer says circulation may be less effective in larger spaces.