Humidifier

STEM 630i

• Even though there is water left in the tank, it becomes the water supply notification status (red lamp blinks).

STEM 300

• How often should I replace the cartridge?

STEM Portable

• No more mist (cleaning the atomizer)

STEM 620

• Can citric acid be used to clean the unit?
• Antibacterial plate has discolored.
• The power cord is loose.
• About antibacterial plate
• Illuminance sensor does not respond (the Tank Lower Level indicator does not dim).
• A clicking sound can be heard from the unit during operation.

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HM-C610S

• Can I use any commercially available aroma oil?
• Much mist has nebulized.