The certification mark, as intended to be use by authorized persons, is intended to certify that the claimed 24-hour water output capacity for a humidifer at standard operating conditions has been determined and accurately stated in accordance with American National Standard ANSI/AHAM HU-1.
"CERTIFIED RATING", "WATER OUTPUT", "ASSOCIATION OF HOME APPLIANCE MANUFACTURERS", and "MANUFACTURER CERTIFIED TO ASSOCIATION OF HOME APPLIANCE MANUFACTURERS ANSI/AHAM HU-1987"
AHAM