What is the ideal indoor humidity level for comfort?

The ideal indoor humidity level for comfort typically falls within the range of 30% to 50%. This level of humidity not only enhances comfort by preventing the air from feeling too dry (which can lead to issues such as dry skin or respiratory discomfort) but also helps to reduce the growth of mold and dust mites, which thrive in higher humidity environments. Maintaining humidity within this range can also aid in the efficiency of heating and cooling systems by ensuring that the air feels comfortable without excess moisture, which can make temperatures feel warmer than they actually are. Overall, keeping indoor humidity between 30% and 50% is widely recommended for optimal comfort and health in various living spaces.