Dehumidifier
Compressor dehumidifiers utilize the compressor to circulate refrigerant between the cooling coil and the condenser, creating a temperature difference. Humid air passes through the evaporator, where moisture condenses, resulting in dry, warm air discharged through the condenser. Advantages include low energy consumption, a large dehumidification range, and high daily capacity, but performance can be easily affected by the space's temperature and humidity.
The effectiveness of a dehumidifier varies with the room size. If the space is too large for a lower-powered model, it will take longer to reach the desired humidity and consume more electricity. When choosing a dehumidifier, consider your home's size and surrounding environment (highland/coastal) to determine the right features and tank size, avoiding unnecessary energy waste.
| Relative humidity | Household / Tank Size | ||
| Below 300 sq ft | 300 - 500 sq ft | 500 sq ft or above | |
| 50% - 70% | 14 liters or less | 19 - 21 liters | 28 liters or above |
| 71% - 80% | 14 - 18 liters | 24 liters | 33 liters or above |
| Above 80% | 14 - 18 liters | 24 - 28 liters | 42 liters or above |
Choose Grade 1 Products to Save Energy and Money!
*Comparison is based on model information listed on the EMSD's Mandatory Energy Efficiency Labelling Scheme website in May 2025. The comparison models are dehumidifiers with a rated dehumidifying capacity of 10-15 L/day. The models are Carrier DC-22VSB (Grade 1) and De'Longhi DDSE25COMBI (Grade 3).
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