Why is there water mist on the window in the morning?

1, because there is steam in the air. The indoor temperature is higher than the outdoor temperature. In the early morning, especially before and after sunrise, the temperature is very low, and it liquefies when it meets cold water vapor. When the hot air approaches the object with lower temperature, the temperature drops and the water vapor is saturated and condensed. Because this happens near the surface of a low temperature object, water will condense on the surface of the object.

It's hot inside and cold outside. Indoor water vapor will condense into small drops when it meets cold glass.

3. When the weather is cold, the indoor hot air meets the cold glass and liquefies to form water droplets.

4. If the indoor humidity is too high, a dehumidifier can be used to eliminate part of the humidity.

Extended data:

Methods to prevent "water drops on the window glass in the morning";

1. Rational design of new exhaust system.

Reduce the exhaust air volume, increase the supply air volume, ensure a certain positive pressure value in the room, and prevent hot and humid air from infiltrating into condensate. Doors and windows should be closed to prevent hot and humid air from condensing at the air inlet.

2. Correct selection and reasonable calculation of thermal insulation materials.

There are many kinds of thermal insulation materials, different thermal insulation properties and wide application range. Therefore, the parameters such as bulk density, thickness and heat transfer coefficient of heat insulation materials used in air conditioning water pipes and air ducts must meet the design requirements.