Should You Run A Dehumidifier And Air Conditioner At The Same Time

Sweaty, Sticky and Slimy. You’re BURNING from the heat. Questions keep running in your mind:

Should I turn my air conditioner on? Or will it be smarter to turn the dehumidifier on? Can I run them BOTH?

The temperature is rising quickly and so is your frustration…

But Don't Fear! After having tried every combination and researched every website.

Should You Run A Dehumidifier And Air Conditioner At The Same Time

I can confidently say that you SHOULD run a dehumidifier and an air conditioner at the same time.

Today, you will learn:

  • The right “machine” to keep you cool.
  • How to be protected from the heat AND save money.
  • The answers to your age-old questions about A.C. and humidifiers.
  • And much more...

Will A Dehumidifier Help My Air Conditioner Work Better?

Yes, it will. Let me tell you a story. 

Where I live the heat and humidity are BRUTAL.

This results in my home becoming a wonderful place for dust mites, mold and germs. (Hello allergies, my old friend.)

Read More: Dehumidifiers That Work Great In Your Garage

Turning on the air conditioning is like chopping off one head of the two-headed hellhound…

The humidity remains and my allergies are happy to stay as well.

Once I switch on the mighty dehumidifier, I start to feel MUCH better.

The dust mites find a new home and my allergies bid adieu! 

Is this a miracle?

 No, it’s SCIENCE.

How Does A Dehumidifier Help An Air Conditioner

The science is simple.

Air Conditioner works sort of like a tree. It sucks in warm air and pushes out cold air. (Ok, that was a terrible analogy).

Unfortunately, the Air Conditioner DOESN’T remove all of the moisture.

This extra moisture can lead to allergies (ugh) and it can create a perfect hotspot for mold.

Nobody - And I mean nobody - wants to have to pay hundreds of dollars to replace their furniture because of mold.  

Extra moisture also causes the paintings on your wall to fall off.  I don’t want to dig old wounds but…

We all know what a HUGE hassle repainting walls is.

Who knew that moisture could have such an impact on us?

Do You Need A Dehumidifier If You Have AC

Dehumidifiers and Air Conditioning are like Yin and Yan. 

They balance each other out.

An air conditioner can make a room cold, but it CANNOT remove the moisture. 

Read More: Where Should You Put A Dehumidifier In Your House

So, get a dehumidifier, for the sake of saving money, allergies and *surprise* healthy skin (yes, humidity is NOT good for the skin).

It is also GREATLY recommended to get a dehumidifier for well insulated homes.

Huh, how does that make sense?

  • When the weather becomes warmer, a well-insulated house will stay relatively cool.
  • Insulation works both ways: what is inside is trapped from leaving.
  • The insulated environment will cause water vapor to get trapped in the home, resulting in humidity to increase.  

Does An Air Conditioner Help With Humidity

Humidity is measured in percentage of water vapor.

Ideally, your room should have a humidity of between 30%-50%. In extremely warm climates, the humidity is much higher (65%+)

The primary objective for an air conditioner, like discussed before, is to recycle warm air into cold air. However, air conditioning can only decrease the humidity by a few percent.

QUICK TIP: Go to the store and buy a humidity measurement apparatus (they cost about $10-$20).

 When the weather is very warm, point the apparatus into the air (like a wand) and measure the humidity. If it is 60-65%+ buy a dehumidifier INSTANTLY.

Is It Cheaper To Run An AC or Dehumidifier

Dehumidifier's are cheaper.

On average, dehumidifiers cost around $3-$29 per month.

On the other hand, air conditioners can cost around $35- $50 per month.

Unfortunately, in the long run, you need both.

Read More: How Long Does It Take For A Dehumidifier To Work

The best setting to save money when the sun is annoyingly bright and warm is to set your Air Conditioning to 78 degrees Fahrenheit (25 degrees Celsius).

Keep your dehumidifier on as well. The dehumidifier will support your Air Conditioner by keeping the air dry.

Air Conditioners use less energy on dry air than humid air.

When’s The Best Time To Only Use A Dehumidifier

Many people use dehumidifiers ALL year along.

But if money is tight and you still want a comfortable experience, use your dehumidifier during summer for at least 12 hours a day.

Most dehumidifiers have timers that you can set to run for as long as you want and will automatically turn off.

If the tank gets full of water the dehumidifier will turn off on it's own before the tank starts to overflow.

EXPERT TIP: In summer, DON’T turn on your dehumidifier only when it is warm. Yes, you may be feeling cold, but it’s still humid (just take a look at your sticky clothes if you don’t believe me).


Running a Dehumidifier AND an Air Conditioner is VITAL for your enjoyment when things get warm.

Air Conditioning can cool your room wonderfully, but it cannot remove the moisture that comes during summer. That is why you NEED a dehumidifier to prevent excessive moisture. 

A dehumidifier will also make you save money, have less allergies, better skin, and your furniture will not get damaged.  

What are you waiting for?

Set the air conditioning at 78 degrees Fahrenheit (25 degrees Celsius), turn on the dehumidifier and have a LIFE-CHANGING experience. 

Want To Learn More?

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