How to Use a Dehumidifier: Tips for Best Results

How to improve your appliance's performance and efficiency

In the right hands, a dehumidifier can be a great line of defense against unhealthy living conditions in your home: dampness caused by high humidity can form breeding grounds for mold, mildew, and dust mites. Telltale signs of overly humid air include musty odors, clammy conditions, and condensation on the walls, windows, or ceiling.

Need to dry out a particular area in your home? Step one is to choose a great dehumidifier from our picks of the best dehumidifiers, and then to learn more about picking the right one in our dehumidifier buying guide.

CR members can also dive into our complete dehumidifier ratings of over 50 models from more than a dozen brands.

Step two: Put your dehumidifier to work.

Even a great dehumidifier can deliver lackluster performance if used incorrectly. Follow these tips to operate yours efficiently.

Even the best dehumidifiers can’t make up for chronic problems that create damp air in your home. Here, a moisture-control checklist to mitigate potential sources of humidity.