Mold and mildew are all types of fungi that share common features but also differ in many ways. While both fungi grow in moist and humid areas, they can influence your health and house differently. Understanding the differences between mold and mildew can help you understand how to approach the problem. Keep Reading to find out what divides mold from the mildew: 

Where They Grow

Both mold and mildew can grow in moist areas in houses and outside. They require an organic food source, such as drywall, wood, plants, or soil.

Mold can grow on almost any organic surface in a house. Given enough time, mold may cause substances to rot and ruin the structural elements of a home. Mildew develops mostly on crops and can kill them or even be eliminated in time. Mildew is also the name of plant diseases caused by parasitic fungi.


Mold is usually fuzzy or slimy, whereas mold appears either powdery or downy. Downy mildew is yellow initially and turns to brownish yellow in the future. Powdery mildew is white, then turns yellow and black when it evolves.

Mold appears as irregularly shaped spots that can have distinct colors — blue, green, yellow, brown, gray, black, or white. Mildew generally grows in a level pattern and looks like gray, white, or yellow patches that turn black or brown with time.

Exposure Symptoms

Mold exposure can lead to several health problems such as allergic reactions (coughing, itchy eyes, runny nose, coughing, wheezing, irritation of the throat, rashes, etc.), respiratory problems (difficulty breathing, coughing, asthma attacks), heart issues, migraines, depression, and much more. Mildew exposure poses fewer health risks — coughing, headaches, sore throat, and respiratory problems.


Some molds are valuable, for example, Penicillium is used to make antibiotics and can also be utilized in the production of cheese and kale. Mildew does not have any known benefits.

Prevention and elimination

As mold and mildew thrive in humid environments, it’s important to maintain your house dry to prevent growth. Repair leaks, use a dehumidifier to keep humidity at 30-50% and ventilate appliances. Find out more mold prevention hints.

Removing mold and mold yourself may be difficult and harmful to your health. For little infected areas — significantly less than 10 square feet — on surfaces such as walls, wash the mold with a combination of household detergent and water. When the affected area is bigger than 10 square feet, the most secure and most effective way to remove the mold is to telephone a mold remediation company. Learn why DIY mold removal isn’t a good idea.

Mildew on crops could be removed by wiping the leaves lightly with a dampened paper towel. After each wipe, freshen the paper towel. Replace the paper towel when all parts have touched on the moldy surfaces and cut off any leaves which still have mold observable on them. Click here to learn more.

One of the many types of molds that can grow inside, black mold is among the most infamous. Learn about black mold removal. Speak to your local PuroClean office for mold remediation providers, flood cleanup,  and water damage repair. Visit this website to find out more.


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