The relative humidity in your home should be between 30 and 50 percent. Check all doors and windows for leaking or condensation. Have a home humidity test done if you think there is a problem.
Dry home conditions can cause cracking and splitting in your homes wood finishings. This also applies to your wood furniture. This often results in needing total replacement and renovations.
High humidity in your home can cause a host of maintenance issues including mold. Mold can affect your furnishings, surroundings as well as your health. High humidity causes water to penetrate walls and flooring encouraging rot.