Add Yahoo as a preferred source to see more of our stories on Google. Aim to keep basement humidity between 40% and 50% in summer to prevent mold, musty smells, and allergens. Use a hygrometer to ...

Lower outdoor humidity and heating systems cause dryer air indoors in winter. Air that's too dry can lead to dry sinuses, skin, and lips—plus warping and creaking in your home. The optimal indoor ...