The U.S. Consumer Product Safety Commission advises maintaining the relative humidity in your home between 30-50 percent. The exception is when outdoor temperatures drop below 10°F—you should aim to keep your home’s relative humidity around 20-30%. Too much moisture is also bad.

What is dangerously low humidity?

The healthy range for humidity is around 40% to 50%, with a little tolerance for going higher or lower; however, humidity should never be allowed to fall below 30%. Humidity level lower than 30% is what is characterized by very dry air, as well as other symptoms synonymous with the atmospheric condition.

Is 22% humidity too low?

If outside temperature is 0 to 10 degrees, humidity indoors should not be more than 30 percent. If outside temperature is 10-below to 0, humidity indoors should not be more than 25 percent. If outside temperature is 20-below to 10-below, humidity indoors should not be more than 20 percent.