Equipped with a high-efficiency DC inverter motor and particle CADR up to 400 m³/h, it quickly refreshes the air in large living rooms, offices, studios, and other spacious environments.
Living Room : Fill your home with fresh air — breathe easy and relax fully
Studio / Office : Bring fresh air to your workspace — boost focus and productivity
Fresh Air for Pet Owners
Powered by AmmoniaCapture™ Technology with a pet-specific deodorizing formula, it quickly removes odors from pet urine and feces, keeping the air fresh for multi-pet households.
Stay protected during pollen and flu seasons, ideal for sensitive individuals
The high-precision filter effectively captures bacteria, viruses, dust, pollen, and pet allergens, providing strong protection during pet shedding seasons, pollen seasons, and flu seasons. Keep your home air healthy for the whole family.
PM2.5 / PM10 Sensor Detection : Accurately detects allergens such as pollen, dust mites, and pet dander, as well as particles from dust, sandstorms, and airborne debris.\
Large LED Color Display : Visualize air quality at a glance and easily track purification performance.
Removes 99.97% of 0.3 μm particles*
Combining a protective layer, pre-filter, premium modified activated carbon, and high-efficiency filter, it effectively and continuously removes indoor air pollutants, creating a safe breathing environment.
Your Home Air Data Hub
Monitor indoor pollutants in real time and stay informed about your air quality.
Ideal Air Always
Switch to Auto Mode via the Mi Home App or the purifier’s touch control. The purifier adjusts its speed in real time according to air quality, keeping your home air clean at all times.
Sleep Peacefully with Fresh Air
Sleep mode noise is as low as 26 dB(A)*. The display can be dimmed or turned off for a quiet, light-free environment, while fresh air helps you sleep soundly.
One-Step Filter, ReplacementEasy & Effortless
Simply press the side button to quickly replace the filter. Always perform this operation with the purifier turned off.
Minimalist, Elegant, Premium
Featuring a dark gray metallic finish, the curved design adds an artistic touch to any space.
7,666 L/min Powerful Airflow: Refers to the clean air delivery rate at maximum fan speed. Tested by Shanghai Hack Filtration Technology Co., Ltd., Report No.: KJFL20250815.
400 m³/h Particle CADR: Tested by Guangzhou Institute of Microbiology Group Co., Ltd. Actual particle CADR: 427 m³/h; rated CADR: 400 m³/h. Report No.: KJ2025001878.
Recommended Room Size 28–48 m² / Coverage up to 516 sq.ft: Calculated based on GB/T18801-2022 Appendix F.4: Usable area = Particle CADR × (0.07–0.12).
14.4 min to Refresh Living Room Air / Purify a 40 m² Living Room: Based on a room area of 40 m² and a ceiling height of 3 m. Purification time = Room area × Ceiling height ÷ Particle CADR.
Removes 90.1% of Pet Odors / 90.1% Ammonia Removal in 1 Hour: Pet odors refer to ammonia, which smells similar to urine. Odors originate from pet urine, sweat, etc. Tested by Guangzhou Institute of Microbiology Group Co., Ltd., Report No.: KJ2025001879.
98.02% Pollen Allergen Removal in 1 Hour / 99.01% Cat Dander Removal in 1 Hour: Tested by Guangzhou Institute of Microbiology Group Co., Ltd., Report No.: KJ2025001878.
99.99% H1N1 Influenza Virus Removal in 1 Hour: Tested by Guangzhou Institute of Microbiology Group Co., Ltd., Report No.: KJ2025001880.
99.99% Staphylococcus aureus / Streptococcus pneumoniae / Escherichia coli Removal in 1 Hour: Tested by Guangzhou Institute of Microbiology Group Co., Ltd., Report No.: KJ2025001878.
Removes 99.97% of 0.3 μm Particles: Tested by Guangzhou Institute of Microbiology Group Co., Ltd., Report No.: KJ2025002053.
Voice Control: Alexa and Google Assistant require compatible smart devices, which must be purchased separately.
Sleep Mode Noise as Low as 26 dB(A): Tested by Guangzhou Institute of Microbiology Group Co., Ltd., Report No.: KJ2025001878.
Unless otherwise specified, all data on this page comes from Smartmi Laboratory. Actual performance may vary due to environmental differences.
Product images, diagrams, and functional illustrations are for reference only. Actual product appearance and performance may differ.
Some product display images have hidden cables for visual purposes. In actual use, power cords must be connected.
Purification Efficiency
Partical CADR – 400 m³/h
Ammonia Removal Rate – 90.1%
Remove 99.97% particles down to 0.3µm
Recommended Room Size
28–48㎡ (301-516sq.ft)
Screen
LED display
APP + AI voice Smart control
Smartmi Link
Hey Google
Alexa
Specifications
Product Name: Smartmi Air Purifier 3
Color: Dark Gray
Noise: ≤66 dB(A)
Rated Power: 40W
Rated voltage: AC 100-240 V
Net Weight: Approx. 6.1 kg
Gross Weight: Approx. 7.5kg
Product Size: 290*260*529 mm
Package Size: 347mm*314mm*633mm
