Condensation on windows will most likely appear in the winter time when the air is cold outside. Pay special attention to the area around your windows, as moisture could accumulate there and lead to mold or mildew growth. [6] X Research source
Homes in the Southeastern United States are especially vulnerable to high humidity.
Mold will first appear as small black, green, or brown spots. [9] X Research source
Pay specific attention to musty or mildew smells in garages, attics, or basements.
Air quality tests can also help you identify other air quality concerns, like asbestos or radon. [12] X Research source
