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How Does an Air Condition Reduce its Humidity?

If you have air conditioning in your home, you are probably used to comfortable humidity in the summer. So if you notice an increase in humidity in your home, you’re probably wondering, “Does air conditioning reduce humidity?”

Yes, your air conditioner reduces humidity and Carrano Air HVAC Contractors Inc. can help. As Richmond Hill’s trusted HVAC maintenance provider, we place great importance on the comfort of your home. Read on to find out how you can help your air conditioner keep humidity levels down and the benefits.

How Air Conditioners Reduce Humidity

Your air conditioner contains an evaporator coil that extracts condensed water from the surrounding air, expels it, and forces it outside. Less humidity means less humidity in your home. While older air conditioners may struggle to regulate humidity levels, newer working models should be able to keep up on all but the muggiest of days.

Your air conditioner reduces humidity using the following process:

  • Warm room air flows over the evaporator coil, which contains chilled refrigerant.
  • The refrigerant extracts heat from the air and stores it. Moisture is transferred to the evaporator coil and condenses there.
  • Accumulated condensate drips into a pan under the evaporator coil. Water flows out of the system and moves to the outside where it is released.
  • Cool, dry air enters your air ducts, where it is blown and transported throughout your home.

The ideal relative humidity for your home is between 30% and 50%. While low humidity is rarely a problem in New Jersey , with an average morning humidity of 85% during the summer, many air conditioners struggle to keep up.

Helping Your Air Conditioner Reduce Humidity

Does an air conditioner reduce humidity? Yes, but if you’re feeling uncomfortable because your air conditioner is struggling to keep up with New Jersey ‘s high humidity, there are several ways you can help your air conditioner.


Your kitchen and bathroom are prone to moisture build-up as they use the most water. To reduce humidity in your home, run the exhaust fan when bathing, washing dishes and clothes, or boiling water. If indoor humidity is higher than outdoors, you can open windows to regulate humidity.

For even more ventilation, consider installing ceiling fans to circulate more air and utilize your body’s ability to cool itself.

Remove Standing Water

Although it may seem insignificant, condensation in your sink, countertops, and shower can increase the humidity levels in your home. Practice regular wetting by mopping up spills, drying the sink and shower, and avoiding full cups lying around the house.

Use a Dehumidifier

A dehumidifier is a great tool for removing excess moisture in your home. If you only experience uncomfortable humidity in one or two rooms, you may be able to find a portable dehumidifier that suits your needs.

If you find that your air conditioner is still not controlling the humidity throughout your home, consider installing a whole-home dehumidifier. This can save you money in the long run as you can run your air conditioner less and prevent damage and health problems from high humidity.

Set the Fan to Auto

The evaporator coil needs time to drain the accumulated condensate. You may think that running your air conditioner fan all the time will help reduce humidity by promoting air circulation. However, it has the opposite effect.

Running your air conditioner fan continuously will draw the condensation that hasn’t drained from the evaporator coil back into the house, increasing the humidity. If you set your fan to the automatic setting, it will only run when the air conditioner is actively cooling the air, preventing excess condensation from entering your home.

Change the Air Filter

The air filter in your air conditioner improves air quality by removing pollutants such as pet hair, smoke particles and dust. Over time, deposits accumulate in the air filter. If it is not replaced in time, it will become clogged, not only reducing airflow, but also collecting moisture.

Change your air filter every 30 to 90 days depending on the type of filter you use. If you smoke, have pets, or live in a heavily polluted area, the filter may need to be changed more frequently. Some air filters only need to be cleaned and not replaced regularly.

Work with your HVAC specialist to determine the best type of air filter for your air conditioner and home.

Adjust the Fan Speed

Your HVAC technician can help you determine the best fan speed for your home and adjust it on your behalf. Since adjusting the fan speed requires fiddling with the air conditioner wiring, you should never attempt the operation yourself.

A higher fan speed reduces the time it takes for your home to cool down, especially on extremely hot days. However, the reduced cool down time can also lead to increased moisture accumulation in the evaporator coil. A lower fan speed can help reduce humidity levels in your home, but will make it harder for your air conditioner to keep up with the hottest days.

Clean the Coils

When dirt builds up on the evaporator coils, it prevents your air conditioner from cooling efficiently and prevents ambient condensation from building up on the evaporator coils. When an HVAC professional cleans your coils, they ensure they are running at peak efficiency and maintain their ability to reduce humidity. Since an evaporator coil is very fragile, you should avoid major damage to the air conditioner by having it cleaned by a certified technician.

Check the Refrigerant

Your air conditioner requires refrigerant to absorb the heat and deliver the cool air to your air ducts. During the cooling process, the refrigerant changes between the liquid and gaseous states.

The refrigerant travels throughout a self-contained system of tubes and components, and as such, shouldn’t leak. However, as an air conditioner ages, it becomes more vulnerable to leaks. Fixing the leak and refilling the refrigerant can restore your AC unit’s ability to cool the air and remove humidity.

Never attempt to find or fix a refrigerant leak yourself. Not only is the system fragile, but the freon used as the refrigerant is toxic. A certified technician can repair, refill, and dispose of the refrigerant safely and effectively.

Upgrade the AC Unit

Even when an air conditioner is fully functional and well maintained, it can be difficult to cool and maintain humidity if it doesn’t have the capacity to meet your needs. New Jersey  air cooling and heating specialists can help you determine the type and size of air conditioner that best suits your needs. If your home is consistently uncomfortable, especially on days of extreme heat or humidity, you might want to consider upgrading your air conditioner.

The Benefits of Reducing Humidity

Does an air conditioner reduce humidity? Yes, and there are several ways to improve the ability to reduce humidity. There are several advantages with decreasing humidity.

Increased Comfort

High humidity significantly degrades the indoor air quality in your home. The main reason high humidity is uncomfortable is that it reduces your body’s natural evaporative cooling ability. This is why higher humidity looks like higher temperature.

Reducing the humidity in your home makes the air more comfortable as it allows your body to cool down.

Reduced Damage

High humidity can damage your home and property. Persistently high humidity can mold on your carpet, plumbing, and even the air conditioner. Mold can invade your walls and floors, rotting them from the inside and eventually necessitating a complete replacement.

Moisture can also deform your furniture beyond repair, forcing you to spend money on new items.

Improved Health

The mold and mildew that grows in high humidity have detrimental effects on your health. Not only can it aggravate your existing allergies and respiratory problems, but it can cause new issues or infections.

High humidity also makes it difficult to sleep, which decreases your immune system’s ability to fight infection. When you reduce the humidity within your home, you help maintain your overall health.

Saving Money

Due to the other benefits of reducing humidity in your home, you will also save money in the following ways:

  • When your home cools more efficiently and you feel more comfortable, you won’t need to run your air conditioner as often. Lower humidity results in lower electricity bills.
  • You save money on repairing and replacing damage to your home and property.
  • When you are in good health, you spend less money on medication and doctor visits.

Call Carrano Air HVAC Contractors Inc. for All Your Air Conditioning Needs

Now you know the answer to the question, “Does an air conditioner reduce humidity?” Carrano Air HVAC Contractors Inc. can service and repair your air conditioner so you can continue living comfortably. With their expertise and dedication to customer service, they are the best HVAC system repair providers in the area.

Whether you’re wondering what temperature is best for sleeping or your air conditioner needs repairs, Carrano Air HVAC Contractors Inc. can help. Call 732 329-3784 to schedule an appointment.

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