Product Overview Display 25 ℃ 60 % 025 PM2.5 Temperature Humidity Mode Automatic: Automatically switch modes according to the indoor air quality. Sleep: Ultra-low noise for a comfortable sleeping environment. Mode Button Low speed One of the colors below will display according to the PM2.5 value Air Quality Indicator Medium speed High speed Green Orange Red 0-75 μg/m 3 Manual: Set and save the coverage area and the purifying efficiency in the app. 76-150 μg/m 3 150 μg/m 3 or higher Wi-Fi 4