Watercress is fun and easy to grow at home. Take a look at our article showing you how to use the grocery store watercress to start your own patch of watercress at home. Hydroponic Water Cress. This is an image of commercially hydroponically grown watercress.
Fog is the extreme of humidity. Humidity control systems add or remove water vapor from indoor air to stay within proper humidity ranges. Humidity control is important for three reasons: 1  It is a large factor in people's thermal comfort.2  Excess moisture in a building can lead to mold and mildew, causing problems for indoor air quality.umidity control systems add or remove water vapor from indoor air to stay within proper humidity ranges. Humidity control is important for three reasons: 1  It is a large factor in people's thermal comfort.
The WhisperKOOL unit is designed to maintain relative humidity between 50-70%, which is accomplished by cooling the cellar. slowly. You should anticipate an approximate 12 degree temperature differential between the inlet air temperature and the outlet. air temperature on the evaporator (front) side of the unit. When testing the air temperature, please hold the thermometer in the appropriate location for a full minute before recording.