Xiaomi Smart Air Purifier 4 Lite - 360m3/ h CADR And Compact 25-43m2 Coverage
Published on 09/16/2026 at 08:56 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Xiaomi Smart Air Purifier 4 Lite is a compact Wi-Fi air purifier built around a 360m3/h particle Clean Air Delivery Rate, designed to handle rooms in the 25-43m2 range while drawing just 33W of power at maximum output. The tower-style unit uses a three-in-one filter to achieve 99.97% filtration of 0.3?m particles and connects to the Mi Home/Xiaomi Home app for smart scheduling and remote control.Xiaomi Smart Air Purifier 4 Lite overview
Key Specs And Filtration Performance
At the core of Xiaomi Smart Air Purifier 4 Lite is a documented PM CADR of 360m3/h, which Xiaomi calculates as delivering up to 6000L of clean air per minute at maximum output.Purification performance details The global specs page lists the product model as AC-M17-SC, with dimensions of 240 x 240 x 533.5mm and a net product weight of approximately 4.8kg, placing it firmly in the compact tower air purifier category.Xiaomi Smart Air Purifier 4 Lite specs
The purifier’s effective coverage area is documented at 25-43m2, with 360° all-round air intake to pull contaminated air in from all sides.Coverage area and intake design Xiaomi states that the three-in-one filter combines high-efficiency filter media with large-volume activated carbon, achieving 99.97% filtration for 0.3?m particles and using around 20,000cm2 of filter paper plus 450,000mg of activated carbon for extended performance between replacements.Filter media and activated carbon content
Noise, Power Use And Smart Features
For continuous operation, Xiaomi Smart Air Purifier 4 Lite keeps the rated power at 33W, and Xiaomi calculates that 24 hours of purification at maximum output uses about 0.8kWh of electricity.Power and energy consumption figures The specs page lists a maximum noise rating of ? 61dB(A), while the Night Mode figure is documented at 33.4dB(A), with the option to turn off the display light to keep the unit unobtrusive in a bedroom setting.Noise levels and night mode
Smart controls are built around the Mi Home/Xiaomi Home app, with support for remote on and off, timer scheduling, mode selection, air quality monitoring, child lock, and filter replacement reminders.Smart app and remote functions Xiaomi also documents compatibility with Google Assistant and Amazon Alexa, allowing voice commands such as turning the purifier on or off through connected smart speakers, while onboard sensors track PM2.5 levels, temperature, and humidity to drive automatic mode adjustments.Sensor and connectivity details
Design, Dimensions And Filter Maintenance
The tower uses a square footprint, with a base area calculated by Xiaomi at 24cm x 24cm, which is smaller than an A4 sheet of paper and intended to make placement in tighter spaces easier.Footprint and design statement The ABS body is described as anti-oxidant for durability, and the symmetrical grille on top is shaped to smooth the air output while retaining a relatively minimalist look in white.
For maintenance, Xiaomi specifies a three-step filter replacement process using an open-up structure, with a recommended replacement interval of 6-12 months depending on usage and air quality.Filter replacement interval and compatibility The dedicated filter page notes that the replacement filter is only compatible with Xiaomi Smart Air Purifier 4 Lite and reiterates that the filter media is rated at 99.97% filtration efficiency for fine particles up to 0.3 microns, with filtration rates reaching up to 99.99% for particles as small as 0.1 microns.High-efficiency filter media performance
Xiaomi Smart Air Purifier 4 Lite Official Details
Xiaomi’s own product pages document the AC-M17-SC model designation, 360m3/h PM CADR, and compact 240 x 240 x 533.5mm footprint for Smart Air Purifier 4 Lite.
Pricing And US Positioning
Within Xiaomi’s smart home lineup, Smart Air Purifier 4 Lite positions itself as a compact, mid-range air purifier for small to medium rooms, with a documented model designation of AC-M17-SC and features that center on smart control and high filtration efficiency.Model designation and feature summary Xiaomi’s documentation highlights TÜV Rheinland Allergy Care Certification, pointing to tested allergen filtration for dust, pollen, and pet dander in everyday household use.Allergy-related certification mention
Comparison With Xiaomi Smart Air Purifier 4
When placed against the higher-capacity Xiaomi Smart Air Purifier 4, which is documented with a larger coverage area band and a higher PM CADR figure, Smart Air Purifier 4 Lite’s 360m3/h PM CADR and 25-43m2 effective coverage mark it out as the more compact option for smaller spaces.Side-by-side comparison of Xiaomi air purifiers Both models share a rated power of 33W and Wi-Fi app control, but the Lite version’s tighter coverage band and tower height of 533.5mm make it more suited to bedrooms, home offices, and smaller living rooms where floor space and energy use are both considerations.
Use Case And Verdict
For US households looking for a compact smart air purifier that combines quantified filtration performance with app and voice control, Xiaomi Smart Air Purifier 4 Lite offers a documented 360m3/h PM CADR, 25-43m2 coverage, and a 33W rated power draw in a tower measuring 240 x 240 x 533.5mm. Its three-in-one filter with 20,000cm2 of filter paper and 450,000mg of activated carbon, plus the 33.4dB(A) Night Mode option, make it a practical fit for allergy-prone users who want continuous operation without high noise or large footprints, while the defined room-size band sets a clear limit on where it can be most effective.
Xiaomi Smart Air Purifier 4 Lite Facts
- Product: Xiaomi Smart Air Purifier 4 Lite, model AC-M17-SC
- Manufacturer: Xiaomi USA Inc., San Francisco, CA
- Category: Air purifier
- PM CADR: 360m3/h
- Effective coverage area: 25-43m2
- Noise level: 33.4dB(A) Night Mode, ? 61dB(A) maximum
- Dimensions: 240 x 240 x 533.5mm
- Net weight: Approx. 4.8kg
- Rated power: 33W
- Filter life: 6-12 months recommended
- Target audience: Users with small to medium rooms seeking smart allergen and particle filtration
