Why it matters to you
In Charleston's spring and fall, the air is muggy but mild, so the AC barely runs and removes little moisture — that shoulder-season stickiness is exactly what a whole-house dehumidifier handles. Controlling it protects wood floors, trim, and closets from mildew without overcooling the house.
Practical guidance
Track indoor humidity with an inexpensive hygrometer for a few weeks before buying anything. If readings stay high despite a correctly sized, well-maintained AC and sealed return ducts, ask for a humidity assessment to see whether dedicated dehumidification is the right fix.
