If you notice mold growing on your air vents most likely it is because mold is growing in your air ducts, this could be really dangerous for you and your family since the air will spread the mold around your home and can lead to a range of health problems like respiratory issues, headaches, coughing, wheezing, asthma-like symptoms, shortness of breath, hypersensitivity pneumonitis, infections, sinusitis, pulmonary hemorrhage, fatigue, eye irritation, etc.
Mold Inside The Air Ducts
Mold growing inside your Air Ducts will spread to the air vents and walls and will be blown inside your home.
5 Reasons That Cause Mold To Grow On Air Vents/Ducts
- Moisture: Air ducts are damp places so high levels of humidity are a big cause of mold.
- Warmth: When warm air gets in contact with cooler surfaces such as the air ducts, this causes condensation which can lead to mold growth.
- Poor Ventilation: You may think that your air vents would be the perfect place for ventilation however this will not be the case if you have a blockage, dust, dirt, debris, leaks or inadequate outdoor vents.
- Oversized AC Unit: Larger air conditioning units can cool small spaces too quickly, meaning that they turn off before the air has dehumidified causing high levels of moisture.
- Your AC Is Too Cold: Setting the thermostat temperature too low will cause a significant difference in temperature between the air conditioning and the room which can create condensation.
How to Prevent Mold on Air Vents/Ducts
- Mold growth inhibitors: Look for an EPA registered mold growth inhibitor product to prevent mold regrowth in the air vents.
- Replace the air filters regularly: You should replace them normally every 3 months.
- Clean the drip pans: Mold can grow quickly where the drip pans collect water.
- Dehumidify: Keep moisture levels down in the house by installing a dehumidifier if needed.
- Regular inspections: Hire a professional company to inspect your ventilation system regularly, this ensures that there are no leaks or other faults that could lead to a mold regrowth.
- Regular air duct cleaning: Have your air ducts professionally cleaned every 4 years.
- Clear path: Do not put objects or obstacles over your air vents, they will restrict air circulation.
- Install a UV light: It helps to kill mold, viruses and bacteria besides eliminating bad odors.
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