Xiaomi Smart Air Purifier 4 Review
The Xiaomi Smart Air Purifier 4 is the world's first TUV Allergy Care certified air purifier, delivering medical-grade filtration at a price point that makes clean air accessible to every Indian family. Its 400 m3/h CADR outperforms many purifiers costing Rs 25,000+, and the 33W motor consuming just 0.8 kWh per day translates to Rs 150-200 monthly for 24/7 operation. Full smart home connectivity with Alexa, Google Assistant, and real-time OLED PM2.5 display puts premium features at a budget price.
Our Verdict
The Xiaomi Smart Air Purifier 4 disrupted the Indian market by delivering 400 m3/h CADR at Rs 12,000-15,000 - performance previously available only at Rs 25,000+. The smart features (app control, Alexa, Google Assistant, real-time PM2.5 display) rival purifiers costing three times as much. The 500g activated carbon filter handles Indian cooking odors effectively.
Best For
Smart home enthusiasts in 2BHK apartments who want app control, voice assistants, and strong performance without breaking the bank.
Consider Alternatives If
Users in extremely polluted areas needing 600+ CADR, or those who prefer offline-only appliances without WiFi dependency.
Key Features
What We Liked
- +Outstanding CADR-to-price ratio - 400 m3/h performance at Rs 12,000-15,000
- +Large 516 sq ft coverage handles most Indian living rooms
- +TUV Allergy Care certification provides credible third-party validation
- +Remarkably quiet at just 32.1dB in Night Mode
- +500g activated carbon handles Indian cooking odors effectively
What Could Be Better
- -WiFi connectivity can be temperamental with Indian routers
- -Air quality sensor readings sometimes lag by 5-10 minutes
- -Mi Home app interface can be glitchy on some Android phones
- -Filter replacement costs Rs 2,500-3,000 annually
- -No physical remote control included
How It Compares
| Product | Rating | Pick |
|---|---|---|
| Xiaomi Smart Air Purifier 4 | ★ 4.1 | Best Value |
| Coway Airmega 250 | ★ 4.3 | Best Overall |
| Dyson Pure Cool TP07 | ★ 4.2 | Premium Choice |
| Philips AC4221 | ★ 4.7 | Best for Large Rooms |
| Honeywell Air Touch U2 | ★ 4.4 | Best for Large Spaces |
See all 9 products in the full buying guide.
Xiaomi Smart Air Purifier 4
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About The Reviewer
Written by
Subhadeep Ghosh is a tech enthusiast and the founder of SmartHouseGears. He is passionate about smart home technology and loves helping Indian homeowners make informed decisions about home automation, energy efficiency, and the latest gadgets.