what is the normal range for humidity
Some variation is always to be expected. What you want to avoid is prolonged exposure to low humidity. A relative humidity level between 40% and 50% is generally considered to be the most comfortable. Anywhere from 30% to 60% is acceptable, but ideally you want to avoid the extremes of that range.Too low, and you get the problems mentioned above.ome variation is always to be expected. What you want to avoid is prolonged exposure to low humidity. A relative humidity level between 40% and 50% is generally considered to be the most comfortable. Anywhere from 30% to 60% is acceptable, but ideally you want to avoid the extremes of that range.