Air Systems Cleaning Specialist (ASCS) Practice Exam

Fiberboard and flexible ducting should be treated with caution during cleaning due to their porous nature and sensitivity to damage. Fiberboard ducts can absorb moisture and support mold growth if not properly maintained. They are also more susceptible to tearing or deformation when exposed to harsh cleaning methods, such as high-pressure air or abrasive tools, which can compromise their structural integrity and overall performance.

Flexible ducting, often made from materials like plastic or metal foil, can be vulnerable to mechanical damage and may not withstand aggressive cleaning processes. Their design, which includes internal liners, can trap debris, making thorough cleaning essential, but also requires careful handling to avoid puncturing or collapsing the ducts.

In contrast, galvanized metal ducts, rigid duct systems, and plastic ducts are generally more durable and can handle more extensive cleaning techniques. While these materials also require proper cleaning methods, they are less prone to the same types of damage that fiberboard and flexible ducts face. Thus, the focus on caution in cleaning procedures for fiberboard and flexible ducting is crucial to ensuring air quality and maintaining the integrity of the duct systems.