Mold vs Mildew

Mold and mildew can impact indoor air quality and health. But what are the differences between mold and mildew?

Mold and mildew are types of fungi that grow in moist, damp environments. There are many varieties of mold and mildew. They are categorized by allergenic, pathogenic and toxigenic according to family handyman.

What are the Differences?

In addition to biological differences, mold and mildew differ in appearance, odor and location. Servpro offers the following information:

  • Mold is darker than mildew and penetrates surfaces while mildew stays on top of surfaces and is easier to clean.
  • Mold can appear slimy or fuzzy and has a color of greenish-black while mildew appears flat, powdery, and white or gray.
  • The odor of mold is a strong, musty smell while the odor of mildew is milder.
  • Mold is typically found behind walls, under flooring, in HVAC systems and basements while mildew is typically found in bathrooms, windowsills, fabrics and paper.

How to Reduce Mold and Mildew in Your Home

Since mold and mildew thrive in moist environments, controlling moisture and humidity are key. The EPA (Environmental Protection Agency) provides the following information:

  • Fix water leaks and seepage.
  • Cover dirt in crawl spaces with plastic.
  • Use exhaust fans in bathrooms and kitchens.
  • Use dehumidifiers and air conditioners.
  • Use area rugs that can be taken up and washed.

Related: Why Some Countries Have More Indoor Air Pollution Than Other Countries

Impact on Indoor Air Quality and Health

According to the American Lung Association, mold can trigger allergic reactions and asthma symptoms. Exposure to mold has been linked to coughing, sneezing, wheezing, nasal congestion, sore throat and rhinitis (inflammation of the nose).

Mold and mildew have differences, but both thrive in warm, moist environments. Mold and mildew lead to poor indoor air quality and can cause health problems.

About ACI Manufacturing

We manufacture custom air filters for HVAC systems and specialized equipment. We are in Oklahoma.

How can we help you?