Xiaomi Smart Air Purifier 4 Pro Manuel D'utilisation page 5

Product Overview
Display Instructions
PM2.5 Value
Temperature
Humidity
Power Button
Mode Switch Button
Air Quality Indicator
The indicator will display green, yellow,
orange or red according to the PM2.5
value.
Green 1-20 μg/m
Yellow 21-35 μg/m
Orange 36-55 μg/m
Red >55 μg/m
025
3
3
3
3
The negative ion function is enabled by default. The purifier can generate
negative ions when it is working, and then the negative air ions (NAI) are
produced through the reaction between the negative electron and the oxygen
molecules. NAI is very good at trapping certain air pollutants.
The function can be enabled or disabled in the app. When it is enabled, the
negative ion indicator is on; when it is disabled, the indicator is off.
Coarse Particles Indicator
Poor
Note: Coarse particles have an aerodynamic diameter
ranging from 2.5 to 10 µm (PM10–PM2.5). Examples of
coarse particles include dust, pollen, spores, and fly
ash.
Mode
Automatic: Automatically switch modes
according to the indoor air quality.
Sleep: Ultra-low noise for a comfortable
sleeping environment.
Low speed
Medium speed
High speed
Manual: Set and save the coverage
area in the app to adjust the purifying
efficiency.
Wi-Fi Indicator
Negative Ion Indicator
4
Moderate Good Excellent