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Name:  Marshall
Status: other
    age         40s
Age: N/A
Location: N/A
Country: N/A
Date: 2000-2001

Is it possible to lower the dew point in a controlled environment? If so how might it be done?

Dear Marshall-

Yes it is possible to lower the dew point. The dew point is determined by the amount of moisture in the air. The closer the air is to saturation, the dew point approaches the air temperature.

To lower the dew point, moisture must be removed from the air. This can be done in several ways...the most common is to "condition" the air...that is, run it through an air conditioner, which cools the air to condense moisture, and then when it warms, the dew point will be lower. Another method is to use a chemical dessicant, which absorbs moisture or humidity from the air.

Wendell Bechtold, Meteorologist
Forecaster, National Weather Service
Weather Forecast Office, St. Louis, MO

The dew point depends of the amount of moisture in the air. Processes that reduce the humidity, such as the use of dessicants (materials that bind to water vapor), a dehumidifier, or air conditioning , will lower the dew point.

Richard E. Barrans Jr., Ph.D.
Assistant Director
PG Research Foundation, Darien, Illinois

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