Specifications

Psychrometrics Summary
• As the temperature in a space increases, the air can
hold more moisture, so as the absolute humidity in the
space remains constant, the RH% will drop.
• As the temperature in a space decreases, the air can
hold less moisture, so as the absolute humidity in the
space remains constant, the RH% will increase.
• Example: 67°F/90% RH, 75°F/70% RH, 90°F/43% RH all
have the same absolute humidity, 90 grains or 64°F dew
point.
• The absolute humidity cannot change until the
temperature drops below the dew point and moisture
begins to condense out of the air.