Humidifiers Section

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Staff Contact: Mary Opalka

Related Standards

Related Standard 610
Standard 610 Scope
This standard establishes a single set of requirements for the testing and rating of humidification capacity, air pressure drop, and energy consumption and energy efficiency (where used) for central system humidifiers used in residential applications. Central system humidifiers are defined as humidifiers intended to be installed on ducted residential heating/cooling central systems.

Related Standard 611
Standard 611 Scope
This standard establishes a single set of requirements for the testing and rating of humidification capacity, air pressure drop, and energy consumption and energy efficiency (where used) for central system humidifiers used in residential applications. Central system humidifiers are defined as humidifiers intended to be installed on ducted residential heating/cooling central systems.

Related Standard 620
Standard 620 Scope
This standard establishes a single set of requirements for the testing and rating of humidification capacity, power input, and energy input of supplementary heat (where used) for self-contained humidifiers for residential applications. Self-contained humidifiers are defined as humidifiers intended to be installed with a water make-up line and/or drain and electrical services — it may or may not be installed within the humidified space.

Related Standard 621
Standard 621 Scope
This standard establishes a single set of requirements for the testing and rating of humidification capacity, power input, and energy input of supplementary heat (where used) for self-contained humidifiers for residential applications. Self-contained humidifiers are defined as humidifiers intended to be installed with a water make-up line and/or drain and electrical services — it may or may not be installed within the humidified space.

Related Standard 640
Standard 640 Scope
This standard establishes a single set of requirements for the testing and rating of humidification capacity, power input, and energy input of supplementary heat (where used) for humidifiers used in commercial and industrial applications. Devices of the following types are included: atomizing, electric resistance steam generators, electrode steam generators, heat exchangers, infrared, steam injection, and wetted media.




Section Scope

Devices designed to add moisture to the air, including:

1. Central humidifiers, designed to add moisture to air circulated through ducts.

2. Central system humidifiers, designed to add moisture directly into a room or duct system but dependent upon associated outside generating source such as:

a. Steam grid duct.
b. Steam room humidifiers.
c. Pneumatic atomizing.

3. Fixed humidifiers, designed to add moisture directly to the space where the humidifier is located, excluding portable.

4. Self contained humidifiers, designed to add moisture directly into a room or duct system independent of associated outside generating source such as:

a. Electrode steam generators.
b. Electric evaporative.
c. Centrifugal atomizing.