What Are the Differences between Mold and Mildew?

Mildew and mold are both types of fungi that can grow on surfaces in your home. They can both cause damage to your belongings and can be harmful to your health. So, what’s the difference between mildew and mold? Well, let’s talk about that:

What Is Mildew?

Mildew is a type of fungi that can grow on both living and dead organic matter. It’s often found in damp, warm, and humid environments and can cause damage to crops, humans, and animals. Mildew can also cause allergic reactions in some people.

What Is Mould?

Mould is a type of fungus that can grow on almost any surface, as long as there is enough moisture present. Mould thrives in moist, dark, and humid environments and can often be found in homes that have leaks or poor ventilation. Mould can also grow on clothing, food, and other household items.

What Are the Main Differences between Mildew and Mould?

Mildew and mold are both types of fungi that can grow in your home. Both mildew and mold can cause health problems, so it’s important to know the difference between them.

Here are five main ways to tell between mildew and mold:

1. Colour

Mildew is usually white, grey, or yellow, while mold is usually black, green, or brown.

2. Texture

Mildew is usually powdery or downy, while mold is usually fuzzy or slimy.

3. Location

Mildew often grows in damp, warm places, such as bathrooms or laundry rooms. Mould can grow anywhere there is moisture, including in walls, ceilings, or under carpets.

4. Smell

Mildew often has a musty smell, while mold can have a variety of smells, depending on the type of mold.

5. Health effects

Both mildew and mold can cause respiratory problems, such as coughing and wheezing. Mould can also cause skin irritation and gastrointestinal problems.

Which Is Worse? Mould or Mildew?

Mould is more dangerous than mildew because it can produce toxins that can cause serious health problems. Mildew, on the other hand, is not as dangerous and is more of a nuisance.

If you have mold or mildew in your home, it’s important to get rid of it as soon as possible. You can do this by cleaning surfaces with a mold-killing product, like bleach, or you can hire a professional to do it for you.

How Do I Remove Mould or Mildew?

There are a few things that you can do to prevent mold and mildew from growing in your home. These include keeping your home clean and free of clutter, ventilating your home regularly, especially in areas that are damp or humid, using a dehumidifier in damp or humid areas, and repairing any leaks in your home promptly. And, of course, the best way to tackle any mold or mildew problem is to hire a professional.


As you can see, mold and mildew are not exactly the same. They have different looks, colors, and can cause different issues. However, you wouldn’t want any of the two to be growing in your home. As such, if you notice mold or mildew growing in your home, be sure to take action right away. Call in a professional to address it for you to ensure that your home is fully free from mold or mildew!

Environmental Mold LLC is a leading full-service mold and indoor air quality consulting firm that offers various services to help homes stay safe and clean to be in. If you are looking for mold remediation solutions in Huntington Beach, work with us today!

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