In-duct UV-C in AHUs, when validly designed, primarily targets inactivation/ reduction of which concern on the wet cooling coil/ drain pan, subject to product listing and IAQ goals?

Choices

• (A) Biofilms, mold spores, and some pathogens on wetted media or coil surfaces, not a substitute for ventilation
• (B) Structural rebar splicing
• (C) Diesel exhaust treatment
• (D) NPSH of tower pump