How Excess Moisture Hurts Your AC and Your Health

May 16, 2025

Texas residents are no strangers to heat. About 2/3rds of the year is spent with our air conditioners on, and with that heat often comes humidity as well. This excess moisture in the air makes it harder for the human body to release heat through sweat, making humid days feel hotter than the actual temperature outside. As a result, you’ll probably try setting your thermostat lower and lower (or you’ll just accept that this is as good as it is going to get and accept this level of comfort)—but is that helping?

Air Conditioners are Not Dehumidifiers

Your air conditioner does have some dehumidification properties, but that is not its sole purpose. One of the biggest problems with high humidity is that it causes your air conditioner to work harder than it should have to do its job.

As it strains to cool your home and you set the thermostat lower and lower, your air conditioner wears down and wastes energy. This excessive moisture makes it more likely that the indoor coil will freeze, which a dehumidifier helps prevent. Ultimately, without solving the humidification problem, you may not only find yourself facing a premature system replacement but also higher monthly energy bills.

Humidity and Your Health

Humidity is one of the worst indoor air quality problems you can have. High levels of humidity make you feel overheated, since as we mentioned above it is more difficult for your sweat to evaporate. Outdoors it can lead to heat stroke, and indoors it can make you feel pretty miserable!

But humidity makes you more than uncomfortable—its effects can make you sick.

As moisture builds up in your home, mold develops. Even the mildest cases of mold can aggravate the symptoms of those with allergies and asthma. And if the mold is neglected and allowed to grow further, it can make even the healthiest person ill just from breathing in mold spores (not to mention, mold creates property damage!) A whole-house dehumidifier, the benefits of which we’ll get to in a moment, can help prevent this.

The Solution to Your Humidity Problems

For an unbearably humid home (that is, a home with a relative humidity level greater than 50%), a whole-house dehumidifier is the answer. This indoor air quality product is installed directly into your HVAC system, where it uses refrigerant to absorb moisture from the air.

Yes, this is similar to what your air conditioner does, however, your dehumidifier is focused only on removing moisture—not cooling down your home like your air conditioner. The dehumidifier keeps the air at the same temperature to not interfere with your air conditioning efforts.

One more solution to consider when it comes to preventing the harmful effects of mold is the installation of UV lights in your ductwork. UV lights are harmless to people and pets, but deadly to microorganisms that hide in your air ducts and can make you ill.

For reliable indoor air quality and Spring Branch, TX air conditioning service,

contact [company_name] today.

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

HVAC Service Near South Texas Medical Center

If you're located near the South Texas Medical Center in San Antonio, having reliable heating and cooling is a must — whether you're running a medical office, managing a healthcare facility, or just trying to keep your home comfortable in this high-demand zone. That’s...

Serving Olmos Park Residents

In the heart of Olmos Park, comfort is more than a luxury — it’s a necessity. Whether you're facing a sweltering South Texas summer or prepping for one of San Antonio’s chilly winter mornings, Cowboy’s Air Conditioning & Heating is proud to serve as the trusted...

Cooling & Heating Pros in Olmos Park

If you're a homeowner in Olmos Park, you know the value of craftsmanship, comfort, and reliability — especially when it comes to your home's HVAC system. Whether you’re dealing with the intense San Antonio heat or one of those rare winter cold snaps, Cowboy’s Air...

HVAC Repairs in Olmos Park

When your heating or cooling system fails in the middle of a Texas temperature swing, you can’t afford to wait. That’s why homeowners and businesses in Olmos Park call Cowboy’s Air Conditioning & Heating for fast, reliable HVAC repairs — often with same-day...

Top HVAC Repairs in Terrell Heights

When your AC gives out during a sweltering San Antonio summer — or your heater fails during one of those surprise winter cold fronts — you need help fast. That’s why homeowners in Terrell Heights rely on Cowboy’s Air Conditioning & Heating for top-rated HVAC...

Terrell Heights’ HVAC Specialists

When the Texas heat strikes or a sudden cold front rolls through, you need an HVAC company that shows up fast, solves the issue, and treats you like a neighbor — because you are one. That’s why residents of Terrell Heights trust Cowboy’s Air Conditioning & Heating...

Oak Hills HVAC Professionals

When your HVAC system stops working in the middle of a Texas summer — or on one of those surprise chilly San Antonio mornings — you need a team that shows up fast and gets the job done right. That’s why Oak Hills homeowners trust Cowboy’s Air Conditioning &...

Reliable Heating Repairs in Oak Hills

Even though winters in San Antonio are short, a sudden cold front can quickly turn your home uncomfortable. If your heater isn’t working like it should, don’t wait — Cowboy’s Air Conditioning & Heating provides fast, reliable heating repairs in Oak Hills, San...

Oak Hills Air Conditioning Services

If you're in Oak Hills, San Antonio, and your AC is blowing warm air or struggling to keep up, don’t sweat it — Cowboy’s Air Conditioning & Heating is right around the corner. With over 30 years of experience serving North Central San Antonio, we provide fast,...