Cladosporium Mold: Everything to Know

Despite being one of the most common forms of the fungus to affect both the internal and external parts of the home, Cladosporium mold can be one of the hardest to treat. Nonetheless, given the problems that it can cause and the speed at which it can grow, it’s imperative that learn how!

The good news is that Cladosporium mold is largely harmless, as most forms are unlikely to cause major health problems. However, interaction with the spores can still cause minor illnesses and common irritations while also causing damage to the esthetic and function of the home. With support from this simple guide, condemning it to the past becomes a particularly easy task.

What Defines Cladosporium Mold?

Cladosporium mold is a genus of fungi that covers a range of individual species, all of which are closely connected by a number of shared properties. This type of mold is often characterized by its dark-pigmented conidia and can appear as olive-green, brown, black, or yellow dots. Left untreated, it will spread very quickly to create large clusters.

The fact that it can grow in various conditions both inside and outside the home makes it very difficult for homeowners. External stands can be parasitic or pathogen and may grow on dead plants, tree trunks, or decaying wood.

Meanwhile, the internal forms of Cladosporium mold are most commonly found on carpets, upholstery, window sills and curtains. The fact that the mold can grow in virtually every environment imaginable means that they can appear in dark, moist locations too. This can include the basement as well as around sinks and plumbing features.

While a large percentage of the individual species are pretty harmless, it is impossible to identify the mold without having it lab tested. Consequently, it is highly advised that all molds showing the esthetic characteristics are treated with care and as though they are the most dangerous types.

How Can Cladosporium Mold Harm Your Health?

As already mentioned, not all species within the genus of Cladosporium mold will cause health problems. Likewise, many of the conditions and symptoms will only be felt by people that already have existing conditions or low immune systems. This leaves infants and the elderly in a particularly vulnerable position too.

However, the fact that Cladosporium mold has the potential to cause health problems should not be ignored, even if there are far more deadly forms of mold out there. When this type of fungus is left untreated within your home, the following symptoms and conditions are likely to appear:

  • Allergic reactions, particularly to asthma.
  • Headaches and dizzy spells.
  • Breathing difficulties and/or nasal discharge.
  • Sore throats and coughing.
  • Chest pains.
  • Unexplained exhaustion.
  • Ear and eye infections.
  • Skin lesions and irritations.
  • Sinus problems.
  • And more.

In truth, Cladosporium mold is most dangerous for those with existing conditions while it is unlikely to cause major problems unless you are exposed to it for long periods. Still, it can cause damage to your health while also making the home look and feel disgusting.

Therefore, when you do notice these symptoms, it’s important to pay extra attention to the home to check for this type of mold.

Spotting Cladosporium Mold

As already mentioned, it’s impossible to know whether a mold falls into the Cladosporium genus until it has been sent off to the lab. However, those green to black spots that are synonymous with this type of mold are likely to mean that it is this type. Given how common it is, you’ve probably seen it before. So, once you do see it, there should be little confusion.

The real challenge comes from actually spotting the small spots before they start growing. Keeping a close eye on the surfaces that are considered likely breeding grounds is vital, especially if any of the symptoms have suddenly appeared or worsened.

When you do identify Cladosporium mold, or at least what you suspect to be Cladosporium mold, quick action is pivotal. Bigger problems may require a professional removal from an expert while anything over 10 ft sq makes it a legal obligation. However, smaller issues can be treated on a DIY basis before they grow into anything worse.

How To Remove Cladosporium Mold

Removing Cladosporium mold isn’t as difficult as you might first fear, especially when the infestation is localized in a small space. First and foremost, you’ll want to wear gloves and goggles while those with symptoms of breathing problems may require a mask.

Following this, this simple strategy should work wonders;

  1. Open a window.
  2. Mix one part vinegar with three parts water and spray down any affected surfaces.
  3. After letting the solution settle for a few minutes, rinse it all away.
  4. Mix a mild detergent with water and a few drops of bleach before scrubbing the stubborn molds.
  5. Once the mold has disappeared, rinse and throw away the cleaning materials.
  6. Mix one part hydrogen peroxide with three parts water and spray the lighter Cladosporium mold.
  7. Leave the room to air for at least 15 minutes.

Preventing Cladosporium Mold

Removing Cladosporium from the home, inside and out is crucial but cannot be considered a complete job. It’s equally imperative that you follow this up with the necessary steps to stop repeat episodes. After all, prevention is always the best form of protection.

To do this, simply;

  1. Prevent moisture by attending to any plumbing issues.
  2. Make smarter flooring choices – avoid carpet in areas that can get wet.
  3. Encourage good ventilation throughout the home.
  4. Do not leave waste, especially garden waste, sitting in a place to accumulate bacteria.

The Final Word

Cladosporium mold is a common form of fungus but, despite the fact that it might not harm your health to the same level as some, it must not be overlooked for a second. The longer you leave it untreated, the more likely you are to encounter the associated conditions. Furthermore, the damage to your home will become greater, which could lead to an expensive recovery job.


For the sake of your health and happiness, attending to the mold ASAP is the only answer.