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What Is an Air Exchanger on an Air Conditioner?

Family Inside An Air-Conditioned Room

Do you feel like sneezing and coughing while being inside an air-conditioned room for longer?

It is called the air conditioner allergy that happens after excessive appliance use.

The truth is that air conditioners only cool the existing air inside the room without any ventilation.

The same old air, when it stays inside the room for a long time, tends to get stale.

According to the United States Environmental Protection Agency, the air within our homes is more polluted than the outdoor air.

Dust, dirt, and allergens become part of the trapped air that gets inside your body every time you inhale.

That’s where the air exchanger comes in handy.


An air exchanger is an appliance that works along the air conditioner. It brings fresh outdoor air into your room and conditions it without affecting your preset AC temperature.

It ensures replacing the stale air with fresh air without raising energy bills.

Are you interested to know more? This insightful article will enlighten you about air exchangers on an air conditioner and the reasons to use them.

What Is an Air Exchanger on an Air Conditioner?

Fan On Air Exchanger

The older versions of air conditioners used to work on cooling the existing air inside a room to the desired temperature by the user.

Once you open the door or a window, the hot outdoor air enters the room, affecting its overall temperature and performance.

But with the invention of an air exchanger, things have changed now.

The latest AC models that work along air exchangers help ventilate your space by bringing fresh outdoor air inside.

It is a practical feature that prevents you from inhaling stale air full of allergens.

Similarly, it keeps your home air fresh without mold and mildew buildup.

3 Benefits of Air Exchanger on an Air Conditioner

As mentioned earlier, air exchangers are valuable devices. You must turn them on to keep the room air fresh.

Here are the benefits:

1. Gives Clean and Fresh Air

Clean And Fresh Air At Home

Research shows that improving the air quality can lower the chances of chronic and acute respiratory diseases like asthma.

The ideal way to achieve it is by using the air exchanger on an air conditioner.

The exchanger will use the indoor fan of the air conditioner to suck out the stale air from the room while bringing the fresh air from the outdoor fan.

If you want to breathe fresh and clean air in your air-conditioned room, having an air exchanger along is an excellent idea.

2. Prevents Allergies

Freelancer Sneezing At Home

Air conditioners bring several allergens inside your home, like dust, pollen, and mold.

The air trapped in the room is full of these irritants that go inside your body every time you inhale.

The only way to protect yourself is to have an air exchanger that can circulate the air and provide you with a clean atmosphere.

When the air exchanger expels stale air from your home, it also makes the pollen and allergens exit, causing breathing issues inside your home to go away as well.

3. Controls Humidity

Woman Inside An Air-Conditioned Room

Humidity is extremely harmful to your home environment. It provides an ideal condition for mold growth and allergens.

Furthermore, it can cause condensation in walls resulting in structural damage and wood rot.

Once the air in your room becomes hot and has nowhere to escape, it collects more moisture, increasing the humidity level.

Air exchanger constantly replaces the air inside the room and helps maintain a humidity equilibrium.


Air exchangers are game changers that keep your room air clean and fresh.

The air conditioner only cools down the existing air in the room, which tends to get stale with time.

Dust, allergens, and mold can start accumulating in the atmosphere, causing several breathing issues.

If you are facing a similar problem, it is always good to use an air exchanger along with an air conditioner and let it do the magic of clearing out unhealthy elements from your room.

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