Air-conditioning system: Equipment that treats air to control temperature, humidity, cleanliness and distribution throughout a given space.
Condensation: Changing of a substance (like water) from a vapor state to a liquid or solid state. Typically this is due to a reduction in temperature.
Dampness: Excess moisture that causes problems in buildings, such as mold, leaks or material degradation (bubbles, discoloration), mold odor, directly measured excess moisture (in terms of relative humidity or moisture content) or microbial growth.
Excess Moisture: Moisture that is higher than appropriate, usually represented as moisture content or relative humidity in building material or air.
Moisture: Water vapor or water in a substance such as soil, insulation, or wood. This does not include standing or flowing water.
Moisture Problem or Water Damage: Result of excess moisture or water indicating climate problems or material durability problems.
Moisture transport: Moisture can travel in as vapor and liquids by various methods such as capillary action, wind and gravity.
Mold: All microscopic fungi that grow in the form of multicellular filaments, called hyphae.
Mold Bloom: A heavily affected mold situation where molds bloom and send out spores at the same time. Since mold spores are present much of the time, this indicates that an environmental change has occurred that caused the spores to germinate (increased moisture or heat).
Mold Spores: Packets that contain the genetic material necessary for the formation of a new mold.
Mycotoxin: A poisonous substance produced by a fungus.
Ventilation: Process of supplying or removing air by natural or mechanical means to or from any space.