10/01/2026
Indoor air quality is not one universal yes-or-no test.
A musty odor, recurring dust, a recent leak, an HVAC change, and a concern that appears only in one room are different situations. They may require different questions and different testing scopes.
Before calling an indoor air quality professional, write down:
• What you are noticing
• Where it occurs
• When it started
• Whether it changes with weather, HVAC use, or occupancy
• Any recent leak, renovation, fire, or maintenance work
• What decision you need the testing to support
Indoor air quality concerns can involve moisture, ventilation, particulates, building materials, or other property conditions. The right scope starts with context — not a one-size-fits-all test.
DCG provides indoor air quality testing and clear reporting to help property owners understand the findings and decide what happens next.