Although mold is generally a concern in warmer wet climates it can happen in any home under the right conditions. Mold in most cases causes not only damage to your home and your HVAC system, but it also wreaks havoc on your health. Yearly duct cleaning service from Daffy Ducts can limit your risk of mold.
If you can see or smell evidence of molds, you can probably skip having it tested and go straight to remediating it. Look for signs of water or moisture, especially in dark, hidden areas of the home. If there is no evidence and you want to be sure you don’t have molds, you could hire a qualified mold tester to check for mold. However, it’s important to note that the Centers for Disease Control and Prevention states that there are no standards for what an acceptable amount of molds is, as every home contains some level of molds.
The CDC recommends asking consultants who do testing to establish criteria for interpreting the results beforehand and share what they will do or recommendations they will make based on the results.
If you see a dark-colored substance on an air vent that isn’t painted, rust, or something explainable, it is likely a species of mold or mildew. Molds grows on air vents because moisture forms on the metal vents when the HVAC is on, and dust accumulates on the surface — which is a food source. Cleaning the visible molds in vents is strongly recommended because the molds may release spores into the air, possibly causing harmful health issues.
Mold grows by releasing its spores (reproductive cells) into the air, which are invisible to the naked eye. It can spread and grow anywhere as long as moisture and oxygen are present but commonly grows on surfaces such as insulation, sheetrock, tile, fabrics, and wood. It can enter your home through windows, vents, and doorways or it can attach itself to clothing and pets and be carried inside. It might be a shock to learn that you can have hundreds or even thousands of mold spores in one cubic foot of air in your home.

Mold spores that land on a wet or damp spot and begin growing can produce allergens, irritants, and potentially toxic substances. Continuous exposure to a moldy environment can cause or worsen pre-existing health effects. Seemingly healthy people can also suffer from throat irritation, coughing or wheezing, eye irritation, or nasal stuffiness in a home with high levels of mold.
People who are allergic to mold or who have any pre-existing health issues could get serious infections in their lungs that can spread. Those with asthma could see worsened asthmatic symptoms over time due to exposure to mold spores. Some recent studies even suggest a potential link of early mold exposure to the development of asthma in some children.
BBJ Environmental produces world-leading EPA registered mold, mildew, and other cleaning and control products, designed for use in HVAC, remediation, and restoration. Their products, including mold control, offer safer cleaning and control of molds and mildew. BBJ Mold Control for HVAC Systems and Air Ducts® controls the growth of molds and mildew in HVAC systems. Use as a molds control solution apply after physical cleaning and sanitizing to inhibit microbial growth on supply and return sides of systems including coils, pans, ductwork, and more.
About BBJ Mold Control for HVAC Systems and Air Ducts
- EPA registered for use in occupied spaces.
- Economical concentrated formula.
- Use on coils, pans, fans, ducts, and more.
- Will not damage surfaces.
- One application lasts for months.
We offer BBJ Mold Control services when we see a need or it is requested. If you think you may have molds give us a call for full-service duct cleaning.