AHRI 620 (I-P) and 621 (SI): Performance Rating of Self-contained Humidifiers for Residential Applications

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 mdash; they may or may not be installed within the humidified space.

AHRI 620 (I-P/2014) Performance Rating of Self-contained Humidifiers for Residential Applications

AHRI 621 (SI/2014) Performance Rating of Self-contained Humidifiers for Residential Applications

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