Mold is a common household nuisance that can not only cause unsightly stains but also pose health risks to occupants if left alone for long. One such mold type that often finds its way into homes and buildings is Aureobasidium. Understanding this particular mold and its characteristics is essential for effective prevention and successful mold remediation. In this blog post, we discuss Aureobasidium, exploring its features, potential health concerns, and tips on how to deal with its presence.

What is Aureobasidium?

Aureobasidium is a common genus of molds that belongs to the phylum Ascomycota. It encompasses various species that are frequently found in indoor and outdoor environments. It thrives in damp, humid conditions and tends to develop on decaying organic matter such as wood, plant debris, and moist surfaces like bathroom walls, window frames, and ceilings. Aureobasidium mold typically appears as a black or brownish substance with a slightly furry or velvety texture.

Identifying Aureobasidium

Distinguishing Aureobasidium from other molds can be challenging without proper testing, but there are some key features to look for. As mentioned earlier, its appearance is usually dark-colored, ranging from black to brown. However, as the mold ages, it may turn pinkish or grey. Another characteristic of Aureobasidium is its tendency to grow in small patches, which may merge over time if the conditions are favorable.

Health Concerns

When Aureobasidium mold spores are released into the air and subsequently inhaled, they can trigger various health problems. Individuals with allergies or respiratory issues, such as asthma or chronic bronchitis, are particularly susceptible to the adverse effects of mold exposure. Common symptoms may include nasal congestion, sneezing, coughing, skin irritation, and eye redness. In more severe cases, prolonged exposure to mold spores can lead to chronic health conditions and compromised immune function.


Preventing the growth of Aureobasidium mold is the most effective approach to deal with it. Here are some preventive measures you can take:

a. Monitor humidity levels: Keep indoor humidity below 50% to discourage mold growth. Consider using dehumidifiers in damp areas like basements and bathrooms.

b. Proper ventilation: Ensure that your home is well-ventilated to minimize moisture buildup. Use exhaust fans in kitchens and bathrooms and allow air circulation throughout the house.

c. Fix leaks promptly: Address any water leaks or plumbing issues as soon as they are discovered to prevent water from accumulating and promoting mold growth.

d. Seal cracks and gaps: Inspect your home regularly for any cracks or gaps in walls, windows, and doors, and seal them properly to prevent moisture infiltration.


If you discover Aureobasidium mold in your home, it’s crucial to handle it appropriately to avoid further contamination and health risks. Here’s what you should do:

a. Personal protective equipment: Before attempting any cleanup, wear protective gear, including an N95 respirator, gloves, and eye protection, to minimize exposure to mold spores.

b. Small-scale cleaning: Small mold infestations on hard surfaces can be tackled with a mixture of water and detergent. Ensure the affected area is thoroughly dried afterward.

c. Large-scale infestations: For extensive mold growth or if the mold has infiltrated porous materials, such as drywall or carpeting, it’s best to seek professional mold remediation services from Pure Air Mold Solutions to ensure safe and effective removal.

Conclusion: Aureobasidium

Aureobasidium mold is a common indoor and outdoor fungus that can thrive in moist environments, posing potential health risks to inhabitants. Identifying and addressing this type of mold promptly is essential to prevent its proliferation and minimize health concerns. By practicing preventive measures and promptly addressing any mold growth, you can create a healthier living environment for yourself and your family. If faced with a substantial mold infestation, don’t hesitate to seek professional assistance to ensure proper remediation and a mold-free home.

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