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By maintaining an optimum humidity of between 50-60%rH, drying of body tissue is prevented and static charge build-up eliminated.
The humidity levels in maternity and obstetric departments should always be maintained as babies are particularly sensitive to a dry atmosphere. Also, low relative humidity can severely exacerbate the condition of patients with respiratory problems.
Moisture can be introduced to a hospital atmosphere via the building’s air handling system by either releasing a fine mist of cold water or steam into the air conditioning ductwork. Alternatively direct air systems can be used where humidity is introduced directly to a room on a more local level.
Steam is a very popular solution in hospitals as it ensures the moisture being introduced is 100% safe and also due to the fact that there is often a ready supply of steam being used for sterilising purposes.
Although electrode boiler steam humidifiers are a popular solution to hospital humidification, the installation of more cost effective resistive steam humidifiers can pay for itself within a few years.