Would a Dehumidifier Cool a Room? 2025 Complete Guide

NOV 28, 2025

712 views, 5 mins read

If you live in a damp and humid area, you’ve probably wondered at some point: does a dehumidifier cool a room? Many people assume that removing moisture instantly makes the room feel colder—but the truth is a bit more nuanced. Dehumidifiers can absolutely make a room feel more comfortable, especially during sticky summer weather, but that doesn’t necessarily mean they actively cool the air the way an air conditioner does.

In this guide, we’ll break down how dehumidifiers work, whether they cool rooms, better ways to cool down, and what you should really expect when using a dehumidifier.

Whether you're thinking about buying one or simply trying to understand how humidity affects comfort, this article explains everything in a friendly, easy-to-digest way.

In this article

1. Would a Dehumidifier Cool a Room? 2. How Does a Dehumidifier Work?

Would a Dehumidifier Cool a Room?

It's a common question: does a dehumidifier cool a room?

The scientific answer:

No, a dehumidifier does not technically cool a room.

In fact, it releases a small amount of heat.

But the real-life answer?

In many situations, yes—a dehumidifier can make a room feel cooler.

Why the difference? Because temperature and comfort are not the same thing.

Here’s what actually happens:

Dehumidifiers reduce humidity, which reduces perceived heat.
Dry air feels cooler because your sweat can evaporate properly.
This is why people often say “my room feels cooler after running the dehumidifier.”

Dehumidifiers eliminate stickiness.
High humidity makes fabrics, bedding, and clothing feel damp.
Removing moisture instantly improves comfort—even without lowering the temperature.

Dehumidifiers help AC units cool more efficiently.
If you use an air conditioner, a dehumidifier reduces its workload.
Your AC no longer has to remove moisture first—it can focus on cooling the room quickly.

They stabilize indoor temperatures.
Humid air traps heat, while dry air allows heat to dissipate.
This creates a more stable, comfortable environment.

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But does it actually reduce the temperature on a thermometer?

Usually no—and sometimes the temp rises 1–2 degrees because of heat generated inside the machine. A dehumidifier does not cool a room like an air conditioner, but it makes the room feel cooler by reducing humidity and improving comfort.

If your goal is actual temperature reduction, you’ll still need an Portable Air Conditioner or a fan.

While a dehumidifier can relieve the feeling of damp, stuffy heat, it cannot fill the entire room with cool air during a hot summer. If you want to not only lower the room temperature but also reduce the humidity, the Newentor portable air conditioner can do just that.

It combines Cool, Dry and Breeze - all in one with our portable AC.

The Cooling mode can lower the temperature to 18° at the air vents. The Drying mode is equivalent to a 1.7 L dehumidifier capacity. The Fan mode provides a 5m air supply. It also features a custom-made TCL compressor that leads the industry in cooling, energy efficiency, and noise reduction. Plus, the automatic evaporation technology means no manual drainage is required.

Newentor Portable Air Conditioner

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30-day free replacement for quality issues.
10-Year Warranty.
Fast cooling and quiet operation.
Quick installation for ease of use.

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How Does a Dehumidifier Work?

A dehumidifier’s main job is to remove excess moisture from the air. High humidity makes a room feel warmer than it really is because moist air holds more heat, making your skin sweat without evaporating efficiently. That’s why 28°C with high humidity feels like 35°C—it's not the temperature, it's the moisture level.

How a dehumidifier works in simple terms

The machine pulls warm, humid air from the room.
The air passes over cold coils, and the moisture condenses into water droplets.
Water collects in the tank or drains out through a hose.
Dry air is reheated slightly and released back into the room.

Yes, you read that right—the air that comes out is slightly warmer because dehumidifiers create a small amount of heat during operation.

For reliable, effective moisture control, the Newentor Dehumidifier is engineered to quickly and quietly extract excess humidity, creating a noticeably fresher and more comfortable atmosphere in your home.

Newentor Portable Dehumidifier

$368.00 $920.00 Save $552.00

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Powerful Dehumidification With Brilliant Energy Saving.
Small Air Dehumidifier for Mould, Bedroom, and Bathroom.
3-Fold Noise Reduction Technology.
Sleek and Portable Moisture Terminator.
10 Years Warranty.

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Bottom Lines

So, does a dehumidifier cool a room? Technically, no—it doesn’t remove heat.

But in real-world conditions, most people feel significantly cooler and more comfortable when humidity levels drop. Dehumidifiers reduce moisture, eliminate stickiness, help your body cool naturally, and improve your air conditioner’s efficiency.

Whether you live in a humid climate, have a damp bedroom, or simply want a more comfortable home environment, a dehumidifier can make a major difference. Just remember: for true cooling, you’ll still need an AC—but for comfort, dryness, and fresher air, a dehumidifier is an excellent investment.