For comfort, the dried-out air should have its moisture replenished.
The recommended relative humidity for a home is between 40% and 60%.
When the relative humidity varies above the limits, studies have shown that bacteria, viruses, and other organisms become more active.
In conditioned spaces with lower relative humidity, the dry warm air draws moisture from carpets, furniture, plants and human.
With more humidity in the air, a person is more comfortable at a below temperature.
An efficient and effective equipment called humidifiers produce the moisture and make it available to the air by evaporation.