Which cooling technology provides comfort cooling and humidity removal?

• A. Mechanical vapor compression air conditioning
• B. Evaporative cooling
• C. Passive cooling
• D. Absorption cooling

Answer: (A)

When you want both cooling and humidity control, the key is how the system handles moisture as it cools air. Mechanical vapor compression air conditioning uses a closed refrigerant cycle where the evaporator cools the incoming air. As the air is cooled, its moisture condenses on the cold surfaces and is drained away, removing humidity from the space. This combination—effective cooling plus humidity removal—gives comfortable indoor air.

Evaporative cooling, by contrast, adds moisture to the air as water evaporates, which increases humidity rather than removes it. Passive cooling relies on building design to reduce heat gain and doesn’t actively dehumidify. Absorption cooling can also provide cooling and dehumidification, but it’s less common for typical comfort cooling and usually depends on a heat source, making mechanical vapor compression the most straightforward, reliable option for both comfort cooling and humidity removal.