Stale odors in a home can be caused by a wide variety of things including poor ventilation, retained moisture, cooking odors, pet odors, cigarette smoke, old carpeting and untreated mold/mildew. And given that many of us are indoors these days, we may be compounding the problem. Although a home can turn stale any time of the year, it’s more likely to get musty during the winter months, when the house...