There's no question that humidification is required in many different types of environments to ensure occupant comfort. The tricky part is deciding which system to use, as there are numerous different types of humidification equipment out there, and not every one is right for every situation.
Often when steam is available in a building, engineers rely on the direct steam injection method to provide humidification to occupants. This method involves the steam from a boiler (under pressure) being used for direct injection into a duct, air handler, or directly into the space being conditioned. Engineers have been relying on this method since the 1930s.