QA

Quick Answer: What Causes Musty Smell In House

The most likely cause of a musty smell in a home is mold. Actively growing molds release Microbial Volatile Organic Compounds (MVOCs) that frequently have a distinct odor. The good news is that when damp conditions in a closed-up house cause mold or mildew to grow, it is usually someplace you can see it.

How do I get rid of a musty smell in my house?

The best ways to get rid of musty smells Open windows to get rid of stale air and bring fresh air into the space. Run a dehumidifier to remove excess moisture from the air. Keep air circulating with box and ceiling fans. Decorate your home with houseplants that naturally clean the air. Dust regularly and thoroughly.

Why does my house smell musty all of a sudden?

Musty odors can come from your AC because mold and/or mildew is being distributed in the air of this space, along with other issues with the air conditioning system itself. A dirty evaporator coil can be a problem, as well as a clogged condensate drain line, and leaky air ducts.

How do I find a musty smell coming from?

The most obvious thing to look for is where water might be leaking in your home. If you smell mildew, first check for visible leaks near water sources. Then search for signs of water damage such as discoloration or chipping paint which may indicate that the leak is inside a wall, ceiling, or floor.

What does a musty smell indicate?

A musty smell is a warning sign that you should not ignore and generally is a sign of mold growth in your home. Mold and mildew can release foul-smelling gases. Mold spores grow in the presence of moisture or water and can quickly develop within 24 to 48 hours in the right conditions.

Why does my house smell musty after being away?

When a house is left vacant for extended periods of time, it may begin to smell stale. This scent is caused by lack of air circulation.

How do you get mildew smell out of walls?

In a large bucket, mix one part bleach to four parts water. Scrub the walls and floors with the homemade mildew killer you’ve concocted, being sure to sponge away all bleach residue once you’ve finished the job.

Is a musty smell unhealthy?

A moldy odor suggests that mold is growing in the building and should be investigated. The health effects of inhaling mVOCs are largely unknown, although exposure to mVOCs has been linked to symptoms such as headaches, nasal irritation, dizziness, fatigue, and nausea.

Does musty smell always mean mold?

If your home or clothing smells musty, chances are you have mold or mildew hiding out. So that musty odor you are smelling is not “just” mold but is a result of the chemical compounds released at different stages of the mold’s growth.

How do I find the source of mold in my house?

Most mold is unmistakable, but sometimes small or largely hidden growths just make a surface look dirty. A quick test for mold can be done when you dip a swab in diluted bleach (1 part bleach, 16 parts water) and dab it on the wall. If the spot quickly lightens (or keeps coming back after cleaning), assume it’s mold.

Why does my bedroom smell musty?

If your room smells musty, it could be caused by something called microbial volatile organic compounds (mVOCs). The Environmental Protection Agency says, “because mVOCs often have strong or unpleasant odors, they can be the source of the “moldy odor” or musty smell frequently associated with mold growth.

Will a dehumidifier get rid of musty smell?

Dehumidifiers take excessive moisture out of the air. Eliminating those unpleasant odors is one of the top benefits of running a dehumidifier. “Dehumidifiers help make a room feel less damp. Otherwise the humidity can bring on a musty smell that reminds me of an old house,” says Eric Ball, a spokesman for Lowe’s.

What does mold smell like in walls?

The typical bathroom mold or mildew found growing between shower tiles don’t typically smell like rot, but severe mold growth on walls and ceilings — especially after a flood or leak — can make room smell like rotting wood or fermented cheese.

How can I tell if I have mold in my walls?

If your home has water stains, discoloration on walls, floor, or ceilings, of if you notice bubbling, cracking, or peeling paint or wallpaper, then you’re likely dealing with mold-producing problems.

What does toxic mold smell like?

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.

Why does my drywall stink?

However, when the drywall made its way into American homes, it was exposed to more water vapor. While there, the drywall chemical slowly reacts to form hydrogen sulfide gas. Not only does it stinks, it is toxic. Hydrogen sulfur causes pipe damage and corrodes wires in the house.

What kills mold smell?

Bleach: Bleach’s active ingredient, sodium hypochlorite, is effective at eliminating mold and mildew and musty smells. Toothbrush: If the area affected by a mildew smell or mold is small, you can use a toothbrush to dip into the bleach mixture and get directly at the mildew problem.

Can musty smell make you sick?

In some cases, mold in your home can make you sick, especially if you have allergies or asthma. Whether or not you’re allergic to molds, mold exposure can irritate your eyes, skin, nose, throat, and lungs.