According to the EPA and other indoor environmental experts, the relative humidity inside your home should fall somewhere between 30 and 50 percent, depending on the temperature outside. More specifically, when the outside temperature is 20°F or above, the recommended relative humidity for inside is 35 to 40 percent.

Why are proper levels of humidity so important to your skin (the body’s largest organ) and general good health?

Low humidity causes dry skin, dry hair, itching and chapping. When skin becomes dry and irritated, eczema can flare. Mucous membranes in your nose and throat dry out, increasing discomfort and susceptibility to colds and respiratory illness. With low humidity levels, body moisture evaporates so quickly that you feel chilled even at higher thermostat settings. Dry skin can look tight, dull and flaky.

Adding a humidifier to your home can remedy these problems and help skin look younger and healthier.