The sample mass must be allowed to reach gravimetric equilibrium at each step change in humidity before progressing to the next humidity level.

In contrast, a very low humidity level favors the build-up of static electricity, which may result in spontaneous shutdown of computers when discharges occur.

Evaporative cooling raises the internal humidity level significantly, which desert inhabitants may appreciate as the moist air re-hydrates dry skin and sinuses.

An acceptable humidity level in indoor spaces ranges from twenty to sixty percent year round.

This has the effect of reducing the relative humidity level of the supply air.