what should indoor humidity be

The ideal indoor humidity level for a home is between 30% and 60% . The Mayo Clinic recommends that the ideal relative humidity for health and comfort is somewhere between 30-50% humidity. However, the ideal humidity level for a home can vary depending on personal comfort, health, and the time of year. In the winter, a humidity level of around 30-40% is typically ideal for keeping your home warm and comfortable without leaving condensation on the windows. In the summer, that level can be higher, between 50 and 60% . It is important to note that older wall humidistats may be inaccurate with their readings, so it is recommended to use a device that can measure humidity, such as a hygrometer.