Display Instructions Mode Automatic: Automatically switch modes according to the indoor air quality. Sleep: Ultra-low noise for a comfortable sleeping environment. Manual: Set and save the coverage area in the app to adjust the purifying efficiency. Wi-Fi Indicator PM2.5 Value Temperature Humidity Air Quality Indicator The indicator will display green, orange or red according to the PM2.5 value. Green Yellow Orange Red 1–20 μg/mі 21–35 μg/mі 36–55 μg/mі >55 μg/mі 4