Ductless Split Systems - Dehumidifier.

Ductless Split Systems. Reduces the Level of Humidity.

A dehumidifier is generally a household appliance which reduces the level of humidity in the air, usually for health reasons. Humid air can cause mold and mildew to grow inside homes, both of which pose numerous health risks. Very humid climates or air make some people extremely uncomfortable, causing excessive sweating that can't evaporate in the already-moisture-saturated air.

 

 It can also cause condensation that can disrupt sleeping, or prevent laundry from drying thoroughly enough to prevent mustiness. Higher humidity is also preferred by most pests, including clothes moths, fleas, cockroaches, woodlice and dust mites. Relative humidity in dwellings is preferably 30 to 50 percent.

Ductless Systems Mini Split. Control Relative Humidity.

By their operation, dehumidifiers produce an excess of water which has been removed from the conditioned air. This water, usually called condensate in its liquid form, must be collected and disposed of. Some dehumidifier designs dispose of excess water in a vapor, rather than liquid form.[clarification needed] Energy efficiency of dehumidification processes can vary widely. Dehumidifiers are also used in industrial climatic chambers, to control relative humidity within certain rooms to stay at levels conducive to processing of products.

Ductless Systems Heating Cooling.  Thermal Condensation.

These methods rely on drawing air across a thermocline. Since the saturation vapor pressure of water decreases with decreasing temperature, the water in the air condenses on the cold surface, and is separated from it.

Ductless Systems Heat Pumps.  Mechanical/Refrigerative.

Mechanical/refrigerative dehumidifiers, the most common type, usually work by drawing moist air over a refrigerated coil with a small fan. The cold coil of the refrigeration device condenses the water, which is removed, then the air is reheated by the hot coil. This process works most effectively with higher ambient temperatures with a high dew point temperature. In cold climates, the process is less effective. They are most effective at over 45 percent relative humidity, higher if the air is cold.