Xiaomi
Mi Air Purifier 4 Compact
₹9,999
Xiaomi
Xiaomi Air Purifier 3H
₹14,999
An in-depth comparison to help you choose the right air purifier for your needs.
Price gap
₹5,000
Score gap
4 pts
Rating gap
0.1
Prices accurate as of 24/11/2025. Prices and availability on Amazon.in may change.
Editor's analysis
A hand-written take on how these two compare in the real world.
A Xiaomi vs Xiaomi matchup: the older 3H at Rs 14,999 vs the newer 4 Compact at Rs 9,999. Both have Mi Home app control, voice assistant support, and True HEPA filtration. The 3H is bigger - 380 m3/hr CADR and 45 sq m coverage vs the Compact's 260 m3/hr and 32 sq m. The Compact is Rs 5,000 cheaper with the newer H13 grade filter. If you are already in the Xiaomi ecosystem, this is purely about room size and budget.
Round by round
How each product stacks up across the key dimensions.
Product A
Mi Air Purifier 4 Compact
1
wins
Product B
Xiaomi Air Purifier 3H
5
wins
₹9,999
₹14,999
4.4 / 5
4.5 / 5
86/100
90/100
Bestseller
Bestseller
260 m³/hr
380 m³/hr
32 sq m
45 sq m
Quick summary
A Xiaomi vs Xiaomi matchup: the older 3H at Rs 14,999 vs the newer 4 Compact at Rs 9,999. Both have Mi Home app control, voice assistant support, and True HEPA filtration.
If your room is under 350 sq ft, the Mi 4 Compact saves Rs 5,000 while delivering the same smart experience with a newer H13 filter grade. For rooms above 350 sq ft, spend the extra Rs 5,000 on the 3H for its 46% higher CADR and larger coverage. Same ecosystem, same app, just different room size optimization.
Side by side
Each pick at a glance, what they include and what they cost.
Xiaomi
CADR (Clean Air Delivery Rate)
260 m³/hr
Coverage Area
32 sq m
Filter Type
True HEPA H13
Noise Level
33-62 dB
Xiaomi
CADR (Clean Air Delivery Rate)
380 m³/hr
Coverage Area
45 sq m
Filter Type
True HEPA
Noise Level
32-64 dB
Prices accurate as of 24/11/2025. Prices and availability on Amazon.in may change.
What sets them apart
The decisions you are actually making when you pick one over the other.
The Mi Air Purifier 4 Compact is 33% more affordable, saving you ₹5,000. This is a significant price gap that could be a deciding factor.
The Xiaomi Air Purifier 3H leads in cadr (clean air delivery rate) with 380 m³/hr compared to 260 m³/hr.
The Xiaomi Air Purifier 3H leads in coverage area with 45 sq m compared to 32 sq m.
The Mi Air Purifier 4 Compact is more efficient in noise level with 33-62 dB compared to 32-64 dB.
The Mi Air Purifier 4 Compact is more efficient in weight with 4.2 kg compared to 4.8 kg.
Spec sheet
Side-by-side numbers with subtle highlighting on the stronger value.
| Specification | Mi Air Purifier 4 Compact | Xiaomi Air Purifier 3H |
|---|---|---|
| Price | ₹9,999 | ₹14,999 |
| Rating | 4.4 / 5(1,876) | 4.5 / 5(2,345) |
| CADR (Clean Air Delivery Rate) | 260 m³/hr | 380 m³/hr |
| Coverage Area | 32 sq m | 45 sq m |
| Filter Type | True HEPA H13 | True HEPA |
| Noise Level | 33-62 dB | 32-64 dB |
| Power Consumption | 38W | 38W |
| Warranty | 1 year | 1 year |
| Dimensions | 250 x 250 x 450 mm | 240 x 240 x 520 mm |
| Weight | 4.2 kg | 4.8 kg |
Highlighted cells indicate the stronger value in that row.
Strengths and tradeoffs
Where each pick shines, and where you'll have to compromise.
Decision guide
Pick the one that matches your priorities, not the spec sheet.
Choose
Mi Air Purifier 4 Compact
If you want
Choose
Xiaomi Air Purifier 3H
If you want
Buying tip
Both connect to the same Mi Home app with identical features - scheduling, air quality monitoring, voice control. The key difference is purification power. If you plan to move the purifier between rooms, the smaller Compact at 4.2 kg is more portable, but the 3H's higher CADR means it handles your worst-pollution room better.
Ready to decide?
Quick answers
Buy the 3H if your room exceeds 350 sq ft or you live in a heavily polluted area where the 380 m3/hr CADR makes a noticeable difference. Buy the 4 Compact if your rooms are under 350 sq ft and you want to save Rs 5,000 while getting the same smart features and newer H13 filter.
Yes, technically. H13 captures 99.95% of particles at 0.1 microns, while the 3H's True HEPA captures 99.97% at the larger 0.3 microns. For ultra-fine particles, the Compact's filter is marginally superior. In real-world Indian pollution (mostly PM2.5 and above), the difference is negligible.
Both use the Mi Home app with identical smart features. However, their filters are NOT interchangeable - the 3H uses a larger cylindrical filter while the 4 Compact uses a smaller one. Replacement filter costs are similar at Rs 2,500-3,000 each.