What does ACH stand for in the context of air movement?

In the context of air movement, ACH stands for Air Change Rate per Hour. This term is crucial in understanding how effectively a space is ventilated. It refers to the number of times the air within a defined space is replaced with fresh air in one hour. This metric is significant in various applications, including indoor air quality assessments, mold remediation, and commercial drying processes.

When evaluating drying techniques, particularly in water damage restoration, knowing the ACH is essential. The higher the ACH, the more frequently stale air is replaced, which aids in reducing humidity levels and promoting quicker evaporation rates of moisture from materials. It allows restoration professionals to design and implement effective drying strategies based on the specific needs of a space.

Understanding this concept helps professionals ensure they are optimizing air circulation to mitigate moisture-related issues effectively.