September may feel like the beginning of fall in other parts of the country, but Central Florida homeowners know better. Our air conditioners are still running, afternoon temperatures remain high, and humidity continues to be part of everyday life.
That combination makes September a good time to pay attention to your home’s HVAC system. After months of heavy summer operation, dust and other debris may have accumulated within portions of the system. At the same time, Florida’s humid environment makes controlling unwanted moisture especially important.
Interesting Fact: The U.S. Environmental Protection Agency recommends keeping indoor relative humidity below 60%, and ideally between 30% and 50%, when possible. Controlling moisture is an important part of reducing conditions that can encourage unwanted biological growth indoors.
External Resource: U.S. Environmental Protection Agency — Mold and Moisture
Your A/C Does More Than Cool Your House
When your air conditioner is running, it isn’t simply producing cold air.
Your HVAC system pulls warm household air through return vents. The air passes through the system, where it is cooled before being distributed back into the home through supply ducts.
During this process, the system also removes moisture from indoor air.
That’s particularly important in Central Florida.
When an air-conditioning system is operating properly, condensation produced during the cooling process is collected and drained away. However, drainage problems, leaks, excessive humidity, or other conditions can sometimes introduce unwanted moisture around HVAC components.
That’s when homeowners need to pay attention.
What Does Humidity Have to Do With Dirty Air Ducts?
Humidity does not create dust.
However, dust and unwanted moisture are not a good combination inside an HVAC system.
Ordinary household air can contain particles from many sources, including:
- Clothing and fabrics
- Carpeting and furniture
- Pets
- Pollen
- Soil and outdoor debris
- Remodeling or construction
- Everyday household activities
Some particles are captured by your HVAC filter. Others settle onto household surfaces, while material may also accumulate within portions of the HVAC system over time.
Professional air duct cleaning is designed to physically remove accumulated contamination when the condition of the system warrants cleaning.
Internal Resource: ABC Cleaning, Inc. — Air Duct Cleaning
Don’t Assume Every Dark Spot Is Mold
Florida homeowners hear the word “humidity” and often immediately think about mold.
But a dark area around an air vent does not automatically mean you have mold growing inside your ductwork.
It could be ordinary dust or another type of residue.
Likewise, a musty smell does not provide enough information by itself to determine exactly what is happening inside an HVAC system.
Instead of guessing, investigate the cause.
Look for signs such as persistent moisture, water staining, unusual condensation, visible contamination, or recurring odors.
If there is an active moisture problem, that issue needs to be corrected.
Moisture Control Comes First
This is one of the most important things Central Florida homeowners should understand.
If unwanted moisture is entering an area because of a leaking pipe, roof problem, drainage issue, condensation problem, or another source, cleaning alone will not solve it.
The source of the moisture needs to be identified and corrected.
Otherwise, the same conditions may return.
The EPA emphasizes moisture control as an important part of addressing mold and other biological contaminants indoors.
External Resource: U.S. Environmental Protection Agency — Mold
Watch Your HVAC Drainage System
Your air conditioner can produce a considerable amount of condensation while operating during Florida’s hot, humid weather.
That water needs to drain properly.
Homeowners should periodically look around safely accessible HVAC areas.
Watch for:
- Standing water
- Unusual condensation
- Water stains
- Damp materials
- Overflowing drain areas
- Recurring musty odors
If you discover an HVAC drainage problem, contact an appropriate HVAC professional.
ABC Cleaning, Inc. cleans HVAC systems and ductwork, but an active mechanical or drainage problem should be corrected by the appropriate professional before contamination simply returns.
September Is Still A/C Season in Central Florida
Labor Day may mark the unofficial end of summer, but your air conditioner doesn’t know that.
Central Florida cooling systems may continue operating heavily throughout September and well into the fall.
That means air continues moving through the same return vents, HVAC components, and supply ducts that worked throughout June, July, and August.
This makes early fall an excellent time to take a look around your home.
Check your HVAC filter.
Look at supply registers.
Inspect return grilles.
Pay attention to unusual smells when the system starts.
You don’t need to dismantle anything. A simple visual inspection can sometimes reveal that something deserves professional attention.
When Was Your HVAC Filter Last Changed?
Your filter is one of the simplest defenses against particles moving through an HVAC system.
But filters cannot do their job indefinitely.
A filter heavily loaded with dust and debris needs to be replaced according to the recommendations for your particular HVAC system and filter.
The U.S. Department of Energy recommends routinely replacing or cleaning air-conditioning filters because dirty filters can reduce airflow and system efficiency.
External Resource: U.S. Department of Energy — Maintaining Your Air Conditioner
Don’t automatically assume the most restrictive filter available is best. Your HVAC system is designed for specific airflow requirements.
If you’re uncertain about the appropriate filter, consult a qualified HVAC professional.
What About Mold and Mildew Preventative Treatment?
Because moisture is such an important consideration in Central Florida, homeowners sometimes ask about preventative treatments.
ABC Cleaning, Inc. offers professional mold and mildew preventative treatment for HVAC systems when appropriate.
Internal Resource: ABC Cleaning, Inc. — Mold & Mildew Preventative Treatment
There is an important word in that service name: preventative.
Preventative treatment should never be presented as a substitute for correcting an active water problem.
If a roof is leaking, repair the roof.
If plumbing is leaking, repair the plumbing.
If HVAC condensation is not draining correctly, have the drainage problem corrected.
Once moisture sources are properly controlled, professional HVAC cleaning and appropriate preventative treatment can be considered based on the condition of the system.
Cleaning and Disinfecting Aren’t the Same Thing
Homeowners may also hear about air duct disinfecting.
Professional air duct cleaning and disinfecting serve different purposes.
Cleaning focuses on physically removing accumulated contaminants from HVAC components.
Disinfecting involves applying an appropriate product as an additional treatment when warranted.
ABC Cleaning provides professional air duct disinfecting as part of its HVAC-related services.
Internal Resource: ABC Cleaning, Inc. — Air Duct Disinfecting
The appropriate service depends on the condition of the system. Homeowners should be cautious of anyone who recommends spraying chemicals into ductwork without first evaluating and, when necessary, physically cleaning accumulated contamination.
Frequently Asked Questions
Does Florida humidity cause mold in air ducts?
Humidity alone does not prove that mold is present. However, unwanted moisture can contribute to conditions that deserve attention. Any active moisture source should be identified and corrected.
Can air duct cleaning lower the humidity in my house?
Air duct cleaning is designed to remove accumulated contamination. It is not a humidity-control service. Excessive indoor humidity may require evaluation of your HVAC equipment, ventilation, moisture sources, or other conditions.
Why does my A/C sometimes smell musty?
Musty odors can have several causes, including moisture, HVAC components, damp materials, or contamination elsewhere in the home. The source should be investigated rather than simply covered with fragrance.
Should I have my air ducts cleaned every September?
There is no universal calendar date when every home’s ducts must be cleaned. The condition of the HVAC system should help determine whether professional cleaning is appropriate.
Can I clean inside my ducts myself?
Homeowners can clean accessible vent and grille surfaces. Properly cleaning an HVAC duct system requires specialized equipment and access beyond the first few inches behind the registers.
Florida Humidity Isn’t Going Away—So Pay Attention to Your HVAC System
Living in Central Florida means learning to live with humidity, but unwanted moisture inside your home or HVAC system should never simply be accepted as “part of living in Florida.” Pay attention to your HVAC filter, vents, drainage, unusual odors, and signs of moisture. Correct active water problems promptly and have accumulated HVAC contamination professionally addressed when necessary.
ABC Cleaning, Inc. has been family-owned and operated since 1992, serving homeowners and businesses throughout Orlando and surrounding Central Florida communities. Our professional services include air duct cleaning, air duct disinfecting, mold and mildew preventative treatment, dryer vent cleaning, chimney cleaning and repairs, and more. If months of Central Florida heat and humidity have you wondering what’s happening inside your HVAC system, contact ABC Cleaning, Inc. today for a free estimate or call (407) 381-2120.
