When the temperature outside is below 0 F (-18 C), keep the humidity in your house between 15 and 25 percent. When the temperature outside is between 0 and 40 F (-18 and 4 C), keep the humidity inside between 25 and 40 percent. [1] X Research source

Use bathroom vents and fans when you’re bathing. Run them for at least 20 minutes after your shower. Use kitchen and stove fans when you’re cooking. Run them for about 15 minutes after you finish cooking. Make sure your dryer vents to the outside for when you’re doing laundry. A gas fireplace must have a chimney that vents outside, and you should always keep the damper open when you’re having a fire in a wood burning fireplace.

If you have a sun room that stays dry, you can also keep your plants there. [3] X Research source

If you must line dry clothes inside, keep them in a well-ventilated room, and open a door or window. [4] X Research source

When you are cooking or bathing in a closed off room, open windows to help remove the moisture. [5] X Research source

When you do remove the lid from your dishes, do so in front of an open window, and make sure the exhaust vent is running.

Empty the drip pan or basin on the dehumidifier regularly to prevent that moisture from evaporating back into the air.

Use a hygrometer to keep and eye on the humidity levels in your house. If the humidity levels start to exceed 50 percent, take steps to lower the humidity and increase the temperature until the humidity drops below 50 percent.

Weather stripping is a protective strip that you can apply to doors and windows to prevent cold air from seeping in through joints and frames. You might also want to install a storm window, especially if your windows are made of a single pane of glass. That will create a barrier between the outside of your house and the inside, which will help lessen moisture on the window. [10] X Expert Source Michael FoxWindow Repair Specialist Expert Interview. 1 December 2020.

To apply caulk, you’ll need a caulking gun and a fresh bottle of caulk. After you apply the bead, smooth it down with a small knife or your finger to press the caulk into the hole.

While replacing windows or installing storm windows may be expensive, it will also help to improve the energy efficiency of your home, so you’ll save money on your power bills.

For the most effective ventilation, open windows on opposite sides of the same room to create a cross breeze.

The best time to open the windows and drapes is on sunny days, when the warmth and light from the sun will dry out moisture.

In summer, ceiling fans should rotate in a counterclockwise direction. In winter, switch the fans so they rotate in a clockwise direction, and circulate heat more efficiently. [16] X Trustworthy Source Energy Star Program run by the U. S. Environmental Protection Agency and Department of Energy focused on educating consumers about energy efficiency Go to source