What term refers to a temporary enclosure with walls constructed of fire-resistant polyethylene sheeting (4-6 millimeter)?

• A. Vector
• B. Waterborne
• C. Air Sampling
• D. Soft wall system

Answer: (D)

Temporary containment barriers use flexible, easily installed walls to create a protected enclosure. When those walls are fire-resistant polyethylene sheeting, the setup is called a soft wall system. The thick plastic provides durability and flame resistance while remaining lightweight and quick to deploy or remove, which is ideal for rapid isolation in healthcare or construction areas. The other terms don’t describe a physical enclosure: vector refers to a disease carrier, waterborne to transmission via water, and air sampling to a method of collecting airborne particles.