The smell of mold is typically described as “musty.” It's a stale and damp scent that lingers in the air. It's one of the first and clearest signs of mold or mildew. Some common mold varieties like black mold may also give off an earthy smell.
General dampness, repeated condensation, and high humidity can sometimes bring on a musty smell. Since dampness can also facilitate mold growth it's likely that mold is beginning to form once you start noticing a musty smell.
Known for being found in dark, dank places like many other kinds of molds, black mold has a strange musty odor—definitely not a pleasant scent for human nostrils. Some people have compared this smell to that of rotting wood or paper, while others have said it smells like cedar.
The main way to tell the two apart is how strong the odor is that you smell. Musty odors are not as strong as moldy odors. Either way, smelling a musty or moldy order should alert you to the possibility of mold growth.
A moldy or musty smell is frequently associated with the growth of mold or mildew. These smells are due to microbial volatile organic compounds (mVOCs) being released into the air. The mVOCs are produced by mold and as it grows, they can produce strong smells alerting you of mold or mildew growth.
You want to look for signs of moisture around pipes, P-traps and drains in rooms or areas with musty smells. Washing machine drain issues: Another common reason your house smells musty but no mold growth is in sight is a problem with your washing machine drain.
In the bedroom and living areas, look around window seals for leaks and under potted plants that can leak. Check closets for mildew caused by storing damp shoes or clothes. Don't forget to take a trip to the attic, basement, and garage to check for damp areas around windows, water heaters, and vents.
Use the word musty to describe an unclean, stale, and possibly moldy smell. If something smells musty that means it's probably been sitting in a damp corner without any air for a little too long. Musty smells take time to develop: they're caused by dampness and mold, and signal some amount of decay.
The best way to describe the scent is “musty” or “earthy.” Some individuals even compare it to the smell of sweaty socks.
Most people describe the smell of mold as musty, stale, and earthy — somewhat similar the odor of wet socks or decaying wood. Although mold smells can vary, here are some of the most common characteristics: Musty and Stale — like old socks or a stuffy attic that hasn't been aired out in months.
Musty odors in a home can come from spillage problems, moisture intrusions, and even from air conditioning units that haven't been used in months, since they are not used during the winter months in many States.
A Musty Smell
Mold has a distinct smell. It's often described as musty and earthy, and may even smell like rotting vegetables or plants. You might notice a musty smell, but not be able to see any mold growing. In this case, you should look for areas that might be exposed to water.
As silly as it sounds, this is not a practical joke. Outlets have better access to the area behind walls, and smelling them can help pinpoint the mold problem. If mold is there, you'll be able to smell it. You should also investigate the areas in your home where mold loves to hide.
Common culprits to watch out for include mold and mildew, dust, dirty laundry, stains and spills, pet accidents and leftover food. Once you determine the source of the smell, dispose of it and clean the area as needed.
There may be several contributing factors. For starters, homes with a lot of humidity may begin to smell bad. A damp odor may stem from mold and mildew buildup in a bathroom, attic, basement, or laundry room. These are typically places without a lot of ventilation and where moisture buildup is more common.
There's a musty smell in your home
When you walk into your home, you want it to smell clean and fresh. Moisture in the air tends to hold and trap odor, Bautista says. A dehumidifier will dry out the air and take away this moldy scent.
Some people are sensitive to molds. For these people, exposure to molds can lead to symptoms such as stuffy nose, wheezing, and red or itchy eyes, or skin. Some people, such as those with allergies to molds or with asthma, may have more intense reactions.
While a property owner may eliminate the mold inside the home, the mold smell may not completely disappear. The microbial volatile organic compounds (MVOC) that mold spores release cause the smell of mold. Not all mold produces the MVOC, and some spores may simply stop creating the MVOC at any given point.
Mold is often described as smelling musty. Others have described mold as having an earthy or meaty odor, resembling the smell of wet socks or rotten wood. For many homeowners, the smell is unpleasant and pungent. As mold grows, it can emit gasses known as microbial volatile organic compounds, or MVOC's.
An air purifier could help reduce the smell. Along with cleaning up mold and mildew you find, consider giving your entire house a thorough cleaning. Dust, dirt, dead skin cells, and other accumulation can cause odors, too. The more dirt and grime you remove, the better your home will smell.
Musty smells are often created by dust and poor ventilation, once you get some fresh air in the house it should remove odors considerably. Open the curtains and blinds so as much fresh air comes in as possible. Open cupboards, cabinets, and drawers to air out these spaces as well.
The best way I know how to decipher this information is, mVOCs are more pungent when mold is wet and active as described by the EPA. Dormant mold odor may not be as noticeable because their mVOC production could be decreased. Similar to, a wet dog smells worse than a dry dog but they both have an odor.
Phantosmia is a condition that causes you to detect smells that aren't actually in your environment. It can happen in one nostril or both — and the odors may be foul or pleasant. Common causes include colds, allergies, nasal polyps and dental issues.