Topic Summary
If your house smells musty or earthy, you could be dealing with mold hidden in your carpets or furniture. This guide will show you how to detect the smell, what causes it, and the step-by-step methods to remove it safely and naturally. Whether you’re dealing with a humid basement, flood aftermath, or poor ventilation, we’ll explore how to get rid of the mold smell and prevent it from coming back without relying solely on harsh chemicals.
Why Does My House Smell Musty or Like Mold?
A musty smell in the home is often one of the first signs of mold or mildew growth. This smell typically indicates the presence of microbial volatile organic compounds (MVOCs), which are gases released by mold as it grows and digests organic material like fabric or carpet fibers.

Common Triggers:
- Water leaks (roof, plumbing, appliances)
- Humid air or poor ventilation
- Flooding or damp basements
- Pet urine or organic spills not dried quickly
- Leaving wet clothes or items indoors for too long
Is Mold Smell Dangerous to Your Health?
While the smell itself isn’t toxic, it can indicate harmful mold growth especially black mold (Stachybotrys chartarum), which releases mycotoxins. These can cause:
- Respiratory issues
- Headaches
- Skin irritation
- Allergic reactions
- Asthma flare-ups
Where Is the Mold Smell Coming From in My Home?
Mold loves porous materials and dark, damp spaces. Here’s where to check:
- Carpets: Especially wall-to-wall carpet in basements or near entryways
- Furniture: Upholstered couches, chairs, mattresses
- Walls and Baseboards: Especially behind furniture
- Closets: Poor ventilation and tightly stored items invite mold
- Under Rugs or Floor Mats: Hidden areas collect moisture

How to Get Rid of Mold Smell from Carpet
- Vacuum Thoroughly
Use a vacuum with a HEPA filter to remove mold spores and dust. - Sprinkle Baking Soda
Leave it overnight to absorb odor, then vacuum. - Apply Vinegar Spray
Mix equal parts distilled white vinegar and water. Spray lightly and let it air dry. - Hydrogen Peroxide (Optional)
Use 3% hydrogen peroxide in small areas for deeper mold killing. Always patch-test first. - Use a Steam Cleaner
The heat kills spores and helps lift mold from carpet fibers. - Dry the Carpet Thoroughly
Use fans and dehumidifiers to prevent mold from regrowing.
How to Remove Mold Smell from Furniture
- Sunlight Exposure
Take furniture outdoors for several hours. Sunlight naturally kills mold and dries moisture. - Vacuum and Wipe Down
Use a vacuum with a HEPA filter and wipe with a mild soap solution. - White Vinegar or Vodka Spray
Lightly mist and air-dry. These kill mold and neutralize odors. - Activated Charcoal or Baking Soda Nearby
Place bowls near affected furniture to absorb remaining smells. - Upholstery Cleaning Machine
Use with a non-toxic mold-cleaning solution.
Story: How One Family Discovered the Hidden Source of Their Health Problems
After a long rainy season, Maria noticed her kids were coughing more than usual. At first, she assumed it was a seasonal allergy, but when her youngest started waking up with headaches and nosebleeds, she grew concerned. A faint, musty smell lingered in their living room but everything looked clean.
After consulting a professional, they discovered mold growing deep inside the foam of their couch and under the carpet pad. The culprit? A slow leak from a cracked window frame had been soaking into the carpet during every storm.
They followed a natural cleaning process using vinegar, sunlight, and a professional steam cleaner. Not only did the smell disappear, but their symptoms gradually subsided within two weeks. The experience taught Maria to inspect hidden areas regularly and never ignore a “small” smell.

How to Prevent Mold Smell from Returning
- Use a dehumidifier, especially in basements or humid rooms
- Fix any leaks or water issues quickly
- Improve ventilation: Open windows, use exhaust fans
- Don’t leave wet items on carpets or furniture
- Regularly clean with natural disinfectants like vinegar or tea tree oil
- Store upholstered items away from walls in damp areas
FAQs
Can I use essential oils to remove mold smell?
Yes, tea tree oil, eucalyptus, or lavender oil can be added to your vinegar spray for a pleasant scent and added mold-fighting power.
When should I replace a moldy carpet or couch?
If the mold is widespread, deep within padding, or returning after cleaning, it’s safer and more cost-effective to replace the item.
What if I have a persistent mold smell but no visible mold?
Call a mold inspection service. Mold can grow behind walls, under floors, or inside HVAC systems.
For immediate assistance with mold removal and remediation service in Greenfield Indiana, contact PuroClean Disaster Restoration, Call (+1) 317-467-4436.
PuroClean Disaster Restoration has over 19 years of experience in the mold removal, remediation and mitigation industry, with over 100 five star ratings on Google, serving Indianapolis. Click on this link to see it’s online reviews and ratings.
Final Thoughts
Mold smell isn’t just unpleasant it can be a warning sign. With the right cleaning methods, ventilation, and vigilance, you can safely remove the smell and avoid serious health issues or property damage. Natural cleaning solutions like vinegar and baking soda work well, but in severe cases, professional help is essential.