Your HVAC system is designed to keep your home comfortable. But here’s a twist you might not expect: the very system that circulates cool or warm air can also spread mold spores throughout your entire house.
If you’ve noticed allergy-like symptoms that get worse indoors, or if your home has a musty smell when the air kicks on, your HVAC may be the culprit.
Why HVAC Systems Are a Mold Hotspot
Mold loves dark, damp, and hard-to-reach places. HVAC systems check all those boxes. Mold can grow inside:
- Air ducts
- Drip pans (when they don’t drain properly)
- Coils with condensation buildup
- Around filters that haven’t been changed
Once mold settles in these areas, every time your HVAC turns on, it can blow spores from room to room.
Signs Your HVAC Might Have Mold
Mold in your HVAC isn’t always visible, but here are some red flags to watch for:
- A musty odor when air flows through the vents
- Worsening allergy or asthma symptoms indoors
- Black or green specks around vents or registers
- Condensation or water around your unit
The Health Risks
Breathing mold spores can trigger more than sneezes. Long-term exposure may cause:
- Persistent coughing and congestion
- Headaches or fatigue
- Aggravated asthma or respiratory issues
- Serious complications in those with weakened immune systems
Prevention Tips
You can’t eliminate mold spores from the air completely, but you can lower the risk:
- Change HVAC filters regularly
- Keep humidity below 50% indoors
- Schedule routine maintenance for your system
- Make sure drip pans and drain lines are clear
Why Professional Testing Matters
The tricky thing about HVAC mold is that it’s often invisible. A professional inspection tests both air quality and the system itself to confirm whether mold is present.
At EnviroPro 360, we specialize in uncovering hidden mold—even in your ductwork or HVAC system—so you can breathe easy knowing your home is safe.
