Compare the air temperature and dewpoint temperature to determine the relative humidity. Ligher gray areas are a warning zone and darker gray areas are a danger zone.
Manual Humidifier Control. Tap Humidifier under the humidity tab to access the humidifier screen. To control your humidifier’s status, tap On/Off. Tap the arrows on the Humidifier Control icon to set the desired indoor humidity level. You should consult the Suggested Indoor Relative Humidity Chart at the bottom of the screen when determining what level to set your relative humidity.
Use this table to find out how much water is available from the air (water vapour density or "absolute humidity") when you know local air temperature and relative humidity. This chart uses Système International (metric) units.