Of course, in the cold months many people think about how to get more humidity into their homes to combat the parching effects of winter's dry air. And the good news is that you don't have to forgo your humidifiers; with a little routine maintenance, you can ensure that they're not spewing mold into your air along with that soothing mist. "Change water regularly," says Miller. "And make sure you follow the manufacturer's directions." Some of those manufacturers, such as Holmes
even incorporate antimicrobial products such as Microban®
into their appliances, in part to inhibit mold growth.