humidifier
US /hjuːˈmɪd.ə.faɪ.ɚ/
UK /hjuːˈmɪd.ə.faɪ.ɚ/

1.
a device that adds moisture to the air
:
•
We bought a humidifier to help with the dry air in our apartment.
•
Running a humidifier can relieve symptoms of a cold.
a device that adds moisture to the air