What is the ideal indoor humidity level for comfort in air conditioning?

The ideal indoor humidity level for comfort when using air conditioning is typically between 40-60%. This range is considered optimal because it helps to maintain a balance that prevents discomfort associated with both high and low humidity levels.

At humidity levels below 40%, the air can feel dry, which may lead to dry skin, respiratory discomfort, and other health issues. Conversely, when humidity rises above 60%, the air can feel muggy and uncomfortable, making it difficult for sweat to evaporate, which is the body’s natural cooling mechanism. The 40-60% range allows the air conditioning system to effectively cool the indoor environment while providing a comfortable atmosphere devoid of excessive moisture that can also lead to mold growth and other moisture-related problems.