Illustration, not a photograph. Official product imagery pending.
Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display
In stock
Room air purifier. Clinical validation: CADR rated under GB/T 18801, the Chinese national standard. Stated accuracy: Built-in laser PM2.
Direct answer: is the Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display right for you?
CADR is the only number worth comparing between purifiers, and 400 cubic metres per hour is genuinely high for the price -- it is the figure that decides how fast the room actually clears.
Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display
Editorial verdict
Grounded in published specifications
Summary verdict: CADR is the only number worth comparing between purifiers, and 400 cubic metres per hour is genuinely high for the price -- it is the figure that decides how fast the room actually clears. The number nobody publishes is what it costs to keep running: about Rs2,600 a year in Delhi-grade air once the filter and electricity are counted, which over three years exceeds a third of the purchase price.
Who should buy this
Anyone in a north Indian city wanting real particulate clearance in a large room.
Who should avoid this
Anyone unwilling to budget roughly Rs2,000 a year for filters -- a clogged filter is worse than none.
Key strengths
- 400 m3/h CADR is high for the price and clears a large room quickly
- Built-in laser PM2.5 sensor shows the actual number, not a colour
- 32.1 dB on sleep mode is quiet enough for a bedroom
Limitations
- About Rs2,600 a year to run once filters and electricity are counted
- Integrated HEPA and carbon filter, so both are replaced together
- CADR is rated under GB/T 18801, not the stricter AHAM protocol
Technical specifications
- Brand
- Xiaomi
- Model SKU
- AC-M16-SC
- Type
- Room air purifier
- Clinical validation
- CADR rated under GB/T 18801, the Chinese national standard
- Regulatory status
- BIS marked for electrical safety
- Stated accuracy
- Built-in laser PM2.5 sensor, plus or minus 10 percent or 10 micrograms per cubic metre
- Measurement range
- Effective room size approximately 48 square metres
- Power source
- Mains, 230 V, 33 W maximum
- Connectivity
- Wi-Fi 2.4 GHz, Mi Home app, Alexa and Google Home
- Stored readings
- Filter life tracking in the app
- CADR
- 400 cubic metres per hour, particulate
- Filter
- True HEPA H13, integrated with activated carbon
- Filter replacement cost
- About Rs1,999, roughly every 6 to 12 months depending on air quality
- Annual running cost
- Roughly Rs2,600 -- Rs1,999 filter plus about Rs600 of electricity at 8 hours a day
- Noise
- 32.1 dB on sleep mode
- Warranty
- 1 Year Manufacturer Warranty
Product overview
CADR is the only number worth comparing between purifiers, and 400 cubic metres per hour is genuinely high for the price -- it is the figure that decides how fast the room actually clears. The number nobody publishes is what it costs to keep running: about Rs2,600 a year in Delhi-grade air once the filter and electricity are counted, which over three years exceeds a third of the purchase price.
Key capabilities
- Clinical validation: CADR rated under GB/T 18801, the Chinese national standard
- Regulatory status: BIS marked for electrical safety
- Stated accuracy: Built-in laser PM2
- Measurement range: Effective room size approximately 48 square metres
Frequently asked questions
Is the Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display worth buying?
CADR is the only number worth comparing between purifiers, and 400 cubic metres per hour is genuinely high for the price -- it is the figure that decides how fast the room actually clears.
What is the warranty and return policy for the Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display?
1 Year Manufacturer Warranty. Includes a 7 Days Replacement Guarantee.
Who is the Xiaomi Smart Air Purifier 4 with True HEPA and Real-Time PM2.5 Display best suited for?
Anyone in a north Indian city wanting real particulate clearance in a large room.