The answer to 'which is better dehumidifier or' is that a dehumidifier is generally better than an air conditioner for controlling humidity in your home. Dehumidifiers are specifically designed to remove excess moisture from the air, while air conditioners primarily cool the air and can only remove humidity as a side effect.
Dehumidifiers are more energy-efficient and effective at reducing humidity levels, especially in damp or humid climates. They can help prevent mold, mildew, and other moisture-related issues, and can improve indoor air quality and comfort. Dehumidifiers also tend to be more affordable to purchase and operate compared to running an air conditioner solely for humidity control.