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What paint removes musty smell?

What paint removes musty smell?

Airbnb has a new thing – it’s called Airbnb Plus. Among the myriad qualities that a rental property must tout before they can enter this elite class, is a pleasant smell. Other things include designer touches that make it unique, a coffee maker, keyless entry, and clean and organized cupboards. These homes can’t have any scuff marks on the walls, which leads me to fresh paint, and a questions we get often – Is it possible to use paint to cover odors?

What Is That Bad Smell?

Homes can retain simple odors like kitchen grease, but they can also retain much worse ones. Cat urine will literally make a house reek. If you’ve been in a really old home, there’s a particular smell you’re familiar with. But you might not know the source.

If you’ve ever rehabbed an old home and had to rip out the base boards, you were probably mortified when you saw the amount of “dirt” hiding behind them. This dirt is mainly composed of feces from roaches and rats. It has a definite odor that smells a whole lot like clothes from a thrift shop. This is an odor that you can’t mask completely without ripping out the base boards, vacuuming behind them and replacing them. Fresh primer, caulking, and paint will seal the deal.

Some odors have simply permeated the paint and carpet. The one we deal with the most is cigarette smoke. Years of smoke can cause the cigarette smell to inhabit everything inside the house. Using paint to cover odors is a good first step, but the smell will still be present without taking other steps.

Wood Can Be Cleaned With Essential Oils

Most unpainted wood surfaces, including furniture, can be cleaned with cotton balls with essential oils such as orange, patchouli, lemon, lavender, or a mixture of those oils. These oils will penetrate the wood, clear it of any foul smells, and leave your home smelling better than ever.

Whether you’re buying an old home, selling an old home, or if you simply don’t like the smell of your current home, fresh primer and paint gives you a new canvass for the aromatic home of your dreams. We like natural scents, so once your home is repainted, you can try a diffuser with natural essential oils of your preference to get a home smell that everyone will remark upon.

Cleaning your home with natural products, such as vinegar and water on the floors with a few drops of tea tree oil or Thieves will give your home a signature smell that you’ll always want to come home to.

Odor-Blocking Primer and Paint

While you can use almost any primer or paint to cover odors, there are some products available that are formulated specifically for this purpose. Using a high-quality primer first is an absolute must when trying to block odors. We recommend primers from Kilz and Zinsser.

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Likewise, better-quality paints have formulations that seal and block odors better than others. Sherwin Williams Harmony paint is not only a Zero-VOC product, it also helps to absorb odors and formaldehydes. It was specifically designed to be an Earth-friendly paint to cover odors.

How to Get Rid of Musty Smells In Your House

Mary Marlowe Leverette 2018

Mary Marlowe Leverette is one of the industry’s most highly-regarded housekeeping and fabric care experts, sharing her knowledge on efficient housekeeping, laundry, and textile conservation. She is also a Master Gardener with over 40 years’ experience; writing for over 20 years.

Updated on 10/03/22

Shower curtain with mildew in bathroom

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Do you smell that? Whiffs of musty odors are pretty distinctive in the home, and they can come from basements, walls, spoiled food, laundry, or shower stalls. Usually, this indicates that there is a mold or mildew problem.

Fortunately, with a bit of investigation, thorough cleaning with supplies you have on hand, and diligence to prevent further growth, you can easily control musty smells.

What Causes Musty Smells?

If you’ve ever smelled decaying wood or wet, musty towels left in a pile after a long weekend, you’ve smelled the stale, earthy odor of mold and mildew. A leaky pipe or roof can also cause the buildup of humidity and moisture that results in this offensive smell. Moisture and still air lingering in dark crevices around your home create a welcoming environment for the growth of mold and mildew. When the spores begin to multiply, they emit gasses that our noses can detect.

Unfortunately, mold spores multiply quickly, and it doesn’t take a huge colony to create odors. Promptly clean small areas of mildew (fungi that appear flat on a surface) or mold (fungi that appear raised and usually fuzzy), and monitor the site to prevent return growth.

If the mold area is larger than 10 square feet, you may need professional mold abatement. For small colonies of mildew on fabrics or walls, you can follow these tips to get the source of the musty smells under control.


When cleaning mold and mildew, always take the proper precautions and wear protective clothing, including long gloves, goggles, and a respirator to avoid breathing in mold or mold spores. When cleaning, bag up and put in outdoor garbage all rags and sponges containing mold spores to eliminate spreading.

Are Mold and Mildew Dangerous?

Exposure to mold and mildew in the home can be hazardous to your health. Some people are more sensitive to mold and mildew than others or may already have asthma that mold and mildew can exacerbate. The problem can still cause respiratory and other bodily symptoms of varying degrees that may include:

  • Stuffy nose
  • Wheezing
  • Coughing
  • Red or itchy eyes
  • Itchy skin
  • Shortness of breath
  • Fever
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Locate the Source of the Musty Smell

It’s time to take a look and a sniff around. Until you identify the source of the musty smell, you’ll never be able to get rid of it—and it can get worse. Begin your search in areas that are often warm and moist, like a bathroom. Check for mildew growth in the shower, on the shower curtain, and leaks around sinks, tubs, and toilets.

In the kitchen, look for leaks around the sink and dishwasher. Check under and in the refrigerator and small appliances that use water, like coffee makers and tea kettles. Be sure to also check the trashcan, as mildew could be growing under the disposable trash bag liner.

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.

Check for leaks around the washer and around the doors of front-load washers that can harbor mildew in the laundry room. Be sure that your dryer vent is clean and that the outdoor vent is not blocked, so there is good airflow to eliminate moisture.


Don’t forget to sniff your laundry hamper. If damp towels are left in a heap, mildew can also form there.

Sources of Mold and Mildew in the Home

Repair Leaks and Control Excessive Moisture

To get musty smells under control, repair any leaks that you find. It’s the best way to gain control over the odor. In areas with excessive moisture, install ventilation fans, place moisture barriers over damp soil, or redirect water flow on the home’s exterior.

Increase Air Circulation

Whether you find visible evidence of mildew or not, a musty smell signals that you need to increase air circulation in the home. Open windows and doors, turn on ceiling and attic fans, or add fans to each room. Starting your HVAC system can also help draw out odors and capture mold spores in the filters. Be sure that the system has clean filters and replace them often to help remove musty smells.

Install a Dehumidifier

Since mold and mildew need moisture to thrive, lessening the humidity level in a home can help keep mildew under control. Try to keep your interior humidity no higher than 50%. To gauge the moisture level in your home, get a hygrometer or humidity sensor. Some HVAC systems have dehumidifiers as part of the unit, or you can get a free-standing dehumidifier. Keep the dehumidifier clean and regularly empty the water-collection bin.

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How to Clean Mildew

When you see evidence of mildew, it’s essential to get rid of it before or after you solve the problem causing the issue. For a minor spot or two of mold, you don’t have to use bleach, and you can use a bucket of warm water and a couple of squirts of dish detergent to wipe away the mold spores.

For a more moderate mold area, use bleach to clean up the mold. In a 1 gallon bucket of water, dilute 1 cup of chlorine bleach. This solution effectively kills mildew on surfaces like ceramic tile and grout, cement walls, and washable fabrics.


When using bleach to clean mold, do not mix it (even when diluted) with any other cleaning solutions that contain ammonia because it will cause toxic fumes.

You can also use a more natural approach by spraying the area with distilled white vinegar. Allow the vinegar to work for an hour, and then scrub away the mildew with a sponge or microfiber cloth dipped in baking soda.

You should clean washable fabrics harboring mildew with the hottest water suitable for the material, a heavy-duty laundry detergent, and, for white fabrics, chlorine bleach. Follow the cleaning guidelines for mildewed shoes and dry clean only clothes.

How to Remove Mold

Whatever kind of mold you have, if you have more than 10 square feet of it, the Environmental Protection Agency advises against remediation on your own.

But if you have a small quantity and want to clean it up on your own, you will need a few materials in preparation:

  • Protective gear like goggles, rubber gloves, and a respirator/N95-type mask
  • A window fan to exhaust the air out of the room; it should stop the spores from settling in the room.
  • Wet/dry vacuum to thoroughly vacuum the area to rid it of airborne spores; you can clean the wet/dry vacuum interior afterward.
  • Seal the A/C and heating vents to stop spores from traveling; also, turn off the HVAC system
  • Trash bags are necessary to remove the mold-covered materials

Fix plumbing leaks and other water problems as soon as possible. Locate the source of the mold. If it’s in or on the wall or sheetrock and you have experience changing sheetrock, you can cut out the affected part of the wall. You will need to change out that area of wall insulation too.

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Scrub mold off hard surfaces with detergent and water. Dry all items completely. When you’re sure the mold has been eliminated, seal any wood surfaces with a pigmented shellac or an oil-based primer. Repaint cleaned wall surfaces with latex paint that contains a mildewcide to help stop future mold growth.

Throw away any moldy absorbent or porous materials, such as ceiling tiles and carpet. Mold may be difficult or impossible to remove entirely from those materials.

If you can’t find the source of the mold, you should call a professional. Or, hire a professional if you think it’s hiding under wallpaper and fear that removing it will lead to a massive release of spores.

Get Rid of Musty Odors

  • Deep clean carpets and upholstered furniture: Whether you do it yourself or hire a professional, deep cleaning carpet and upholstered furniture can get rid of mildew spores and freshen a home. Clean on a dry, breezy day so that the fabrics will dry quickly.
  • Clean and declutter every space: Stacks of papers and books can trap moisture and lead to a musty odor. Clean and dust every surface and dispose of as much clutter as possible in every room.
  • Add odor absorbers: Commercial odor absorbers that use activated charcoal are available to hang in closets or spaces that lack good air circulation. Or, use a bowl of dry baking soda, coffee grounds, or kitty litter to help absorb odors, and be sure to change these products frequently.
  • Add pleasing scents: Once the mildew is gone, you can add a more pleasing scent by simmering spices or citrus peels, lighting candles, using diffuser sticks, essential oil diffusers, or commercial air fresheners.

Prevent Mold and Mildew

If you know you have a mold or mildew trouble spot in your house, then be proactive. If the bathroom or kitchen is the source of your problem, then clean with mold-killing products. Also, the next time you redo the paint on the walls in the bathroom or kitchen, use mold-inhibiting paints to keep the spores away.

The key to maintaining a mold- and mildew-free home is being diligent. It can be challenging in climates with high humidity or poor ventilation. Still, if you remove the spores, keep surfaces dry, and mechanically provide good air circulation, you can stop it from returning.

Article Sources

The Spruce uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

  1. Centers for Disease Control. Mold.
  2. US Environmental Protection Agency. Mold cleanup in your home.

Eliminate Odors in your Home with Paint

Smells in a room can quickly curl your nose and make it unappealing. Sometimes it just won’t give up. Whether it’s from pets, mildew, smoke or something else, you will want to exile those stinks. Here is how to eliminate odors from your home with paint.

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Odor absorbing paint is new to the market but is a short-lived solution. Much like a candle or air fresheners, this is a short-term solution. You will need to track down and address the problem causing the smell or you’ll be dealing with it as an ongoing issue. Here are the most often offenders when it comes to odors in your home.

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Spills, wetness, and dirt all contribute to smells that waft up from your carpets. Address the carpet odors by purchasing or renting a rug shampooer for a thorough cleaning.


We spend a lot of time on our mattresses. Musty smells can linger in bedrooms from the bed itself. To clean it, sprinkle baking soda on the mattress. Leave it to sit for some time before vacuuming it up. This is also effective on pet beds.


It’s tempting to just close the closet doors and ignore the lingering odors. Unfortunately, this just covers up the problem. Go through clothes and address wetness or other issues that could be causing the musty smells.


You would be surprised how much smells can infiltrate your walls. While they are not the traditional soft surface that would absorb and reproduce these smells, they can trap them in. Wash the walls down with a trisodium phosphate solution. If this doesn’t seem to solve the problem, try a new coating of paint.


Remove any lingering moisture in the air via dehumidifiers. This will remove lingering smells in the air in your house.

Mildew and Mold

Go through any rooms that are prone to wetness and seek out mildew or mold. Attack these problems with one gallon of warm water with one cup of bleach and start scrubbing. It’s a good idea to wear protective gear and work in a well-ventilated area.

Soft Surfaces

Soft surfaces like rugs, furniture, and textiles are the biggest offenders when it comes to absorbing and reproducing the smells in your home. Shampoo, wash and use decontaminating sprays to remove these odors.


Once the offending smell causes are remedied, you can start fresh with new paint. Seek out paint that offers anti-microbial agents within the formula. This will hinder the further growth of mildew, bacteria, and other potential smells.

If you are looking for professional help with a painting job, contact us now. Schedule a free, in-home estimate with the CertaPro Painters® of Palatine crew.

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