| A | B |
|---|
| Absolute Humidity | The amount of vapor that is contained in an air sample. |
| Comfort | People are said to be comfortable when they are not aware of the ambient air surrounding them. They do not feel cool or warm or sweaty. |
| Dew Point Temperature | The exact temperature at which moisture begins to form. |
| Dry-Bulb Temperature | The temperature measured using a plain thermometer. |
| Enthalpy | The amount of heat a substance contains from a predetermined base or point. |
| Humidity | Moisture in the air |
| Infiltration | Air that leaks into a structure through cracks, windows, doors, or other openings due to less pressure inside the structure than outside structure. |
| Psychrometric Chart | A chart that shows the relationship of temperature, pressure, and humidity in the air. |
| Psychrometrics | The study of air and its properties, particularly the moisture content. |
| Relative Humidity | The amount of moisture contained in the air as compared to the amount of air could hold at that temperature. |
| Sling Psychrometer | A device with two thermometers, one a web bulb and one a dry bulb, used for checking air conditions, wet-bulb and dry bulb. |
| Total Heat | The total amount of sensible heat and latent heat contained in a substance from a reference point. |
| Ventilation | The process of supplying and removing air by natural or mechanical means to and from a particular space. |
| Wet-Bulb Depression | The difference between the wet-bulb and the dry bulb reading when readings are taken in air. |
| Wet-Bult Temperature | A web-bulb temperature of air is used to evaluate the humidity in the air. It is obtained with a wet thermometer bulb to record the evaporation rate with an airstream passing over the bulb to help evaporation. |
