How does refrigerator humidity control work?

Humidity control is a specialist refrigeration function that certain manufacturers include in their refrigerator models, particularly higher-end versions. Users may manage the humidity - or the quantity of moisture in the air - within the refrigerator's fresh food compartments. The principal cooling room, where the shelves reside, fruit and vegetable drawers, commonly known as "drawers," are examples of controlled humidity sections.




Fresh foods are prone to drying out and turning bad if kept in regions with low humidity levels in the surrounding air. Traditional refrigerator design, however, does not encourage moisture production. The evaporator, which is in charge of heat suction, is usually found in the freezer. In the fresh food areas, a fan circulates the cold air produced by a condenser, but not before many of the water molecules in the air freeze on the condenser's surface. As a consequence, the fresh-food section's air isn't very humid. Humidity control systems solve this issue by bringing perspective from the outside into the coolers.


Bringing in the air outside of

Refrigerator humidity control systems enable non-refrigerated air from outside to flow into refrigerator fresh food sections. Humidity control systems work by using ducts or pipes that may find in refrigerator side panels, rear panels, hoods, or doors. Humidity control systems employ louvers or shutters that can be opened and closed to allow more or less air to manage the quantity of outside air that flows inside freezers.


Manual vs. Automatic


Refrigerator humidity control systems may operate in one of two ways: manually or automatically. You slide a button, lever, or push a button to activate a manual humidity control system, which causes the air regulating louvers to open broader or narrower with more force. The actual process for doing so differs across models.

There is usually a push-button interface inside or outside the refrigerator with an automated humidity control system, enabling you to pick the desired humidity level. Unlike a manual method, the automated system detects the quantity of moisture in the air using a sensor. The system adjusts a motorized damper to enhance or reduce outside airflow.



Manufacturers put filters at the passageways of refrigerators' humidity control systems to prevent extraneous particles such as airborne dust and dirt from entering. Before the particles can flow inside the fridge, the filters catch them.