Many homes are equipped with central humidifiers, which are devices hardwired into the home’s heating and plumbing systems so that the indoor air stays moist and comfortable during the dry winter months. Inspectors and homeowners should be aware that under the right conditions, humidifiers can introduce dangerous bacteria into the air. They can also cause condensation to form on cold surfaces, such as windows and walls, contributing to wood rot and the growth of mold. In order to prevent these things from happening, the humidistat must be adjusted daily and the humidifier cleaned out as needed. To find out more, take a look at our new article about central humidifiers.