How to Get Moth Ball Smell Out of Clothes: Complete Guide

You pull your winter coats out of storage and that sharp, chemical punch hits you immediately. Mothball smell is one of the most stubborn odors to remove from fabric, and if you've ever tried to wash it out only to have it come back worse, you know how frustrating it gets. The good news is that it's absolutely fixable, but the right approach depends on what kind of fabric you're dealing with and how long the odor has been sitting in the fibers.

Here's what most people don't realize: there are two different chemicals behind that smell, and they behave very differently. Naphthalene, the older and more common moth repellent, sublimates at 176°F (80°C), meaning it transitions directly from solid to gas. Paradichlorobenzene (PDB), the other major type, does the same thing at a slightly lower 163°F (73°C).

Both chemicals bond to fabric fibers over time, and both require a specific sequence of steps to fully remove. Let's walk through exactly how to tackle this, starting with understanding what you're actually dealing with.

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Quick Answer

To get mothball smell out of clothes, start by airing garments outdoors in direct sunlight for 24 to 48 hours. Then soak the fabric in a white vinegar and water solution for at least one hour. Wash with an enzyme-based or oxygen-based detergent on the hottest temperature the fabric allows.

Air dry only, and repeat if the smell persists. Never use a dryer until the odor is completely gone, as heat can permanently set the chemical into the fibers.

What's Actually Causing the Smell: Naphthalene vs. Paradichlorobenzene

Before you start throwing things in the wash, it helps to know which chemical you're fighting. Traditional mothballs are made from naphthalene, a petroleum-derived compound that produces a strong, pungent odor. Newer moth repellents and moth crystals often use paradichlorobenzene (PDB), which smells similar but is chemically distinct.

Both work by sublimation, the process where a solid turns directly into a gas without becoming liquid first. That gas is what kills moth larvae, but it's also what penetrates deep into fabric fibers and lingers long after the mothball itself is gone. Naphthalene tends to bond more aggressively to natural fibers like wool and cotton, while PDB can be slightly easier to remove from synthetic blends.

The Agency for Toxic Substances and Disease Registry (ATSDR) classifies both chemicals as volatile organic compounds (VOCs) with potential health risks from prolonged inhalation. The EPA regulates both under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and their labels specify use only in sealed, airtight containers. If your clothes smell strongly of either chemical, you're dealing with off-gassing that has already saturated the fibers, and surface-level solutions like spraying perfume won't cut it.

How to Assess Your Situation Before You Start

Not every garment needs the same treatment. Jumping straight into a hot wash can actually make things worse, especially for delicate or color-sensitive fabrics. Take a few minutes to evaluate what you're working with before choosing your method.

Fabric type matters most. Cotton, polyester, and other sturdy machine-washable fabrics can handle aggressive treatment, including hot water and oxygen-based cleaners. Wool, silk, rayon, and down-filled items need a gentler approach because heat and agitation can damage the fibers or cause shrinkage. Leather and suede can't be washed at all and require entirely different methods.

Odor severity is the next variable. Light exposure, like a garment stored near (but not directly with) mothballs, might only need a single wash cycle. Heavy saturation, where the clothes were sealed in a box with mothballs for months, could require multiple rounds of soaking and washing over several days.

Colorfastness is critical to check. Before applying any liquid treatment, dab a small amount of your cleaning solution on an inside seam or hidden area. Wait a few minutes and blot with a white cloth. If any color transfers, you're dealing with a fabric that can't handle aggressive soaking without bleeding.

Here's a quick decision framework:

The Airing-Out Method: Your First and Most Important Step

This is the step most people skip, and it's the one that makes everything else work better. Before you soak, wash, or treat anything, get your garments outside. Fresh air and sunlight are the single most effective first-line tools for reducing mothball odor, and they cost nothing.

Take the affected clothes outdoors and hang them in direct sunlight with good airflow on all sides. A clothesline works best because air circulates around the entire garment. If you don't have outdoor space, an open window with a fan blowing directly on the fabric is a reasonable substitute, though it will take longer.

UV radiation from sunlight helps break down both naphthalene and PDB molecules on the fabric surface. Meanwhile, the breeze carries away the VOCs as they off-gas from the fibers. For light odor exposure, 24 hours may be enough.

For heavy saturation, plan on 48 to 72 hours, ideally across multiple sunny days.

A few things to keep in mind. Dark or brightly colored fabrics can fade in prolonged direct sunlight, so rotate them or limit exposure to a few hours per side if you're concerned about color loss. And don't skip this step even if you're planning to wash immediately.

Airing out first reduces the chemical load significantly, which means your wash cycles will be more effective and you'll need fewer of them.

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How to Wash Mothball Smell Out of Machine-Washable Clothes

Once your clothes have been aired out, it's time to wash. This is where the real chemical removal happens, but the details matter. Do this wrong and you'll lock the smell in permanently.

Step 1: Pre-soak. Fill a bathtub, basin, or your washing machine with cool to warm water and add one cup of white vinegar per gallon of water. Submerge the garments completely and let them soak for at least one hour, up to overnight for heavy odor. Vinegar's acetic acid helps neutralize the alkaline compounds in naphthalene and PDB residue.

Step 2: Drain and rinse. After soaking, drain the vinegar solution and give the garments a quick rinse with clean water. You don't need to wring them out aggressively, just remove the excess liquid.

Step 3: Wash with the right detergent. Use an enzyme-based liquid detergent (like Persil or Tide Ultra OXI) or add an oxygen-based cleaner like sodium percarbonate (the active ingredient in OxiClean) to your regular detergent. Set the water temperature to the hottest level the fabric can safely tolerate. For cotton and polyester, that's typically 140°F (60°C) or higher.

Run an extra rinse cycle to make sure all residue is flushed out.

Step 4. Air dry only. This is critical. Do not put the clothes in a dryer until you are completely certain the smell is gone.

Dryer heat can bond any remaining chemical residue to the fibers permanently, and you'll be back to square one. Hang the clothes outside or in a well-ventilated room and let them dry naturally.

Step 5: Sniff test. Once fully dry, smell the garments carefully, especially in areas where fabric is thick or layered, like collars, seams, and pockets. If you can still detect any chemical odor, repeat the wash cycle. Most moderately affected garments need two to three full cycles before the smell is completely gone.

One more thing. After washing mothball-contaminated clothes, run an empty cleaning cycle on your washing machine with hot water and vinegar or a washing machine cleaner. Residual naphthalene or PDB can linger in the drum and transfer to your next load of laundry.

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How to Remove Mothball Smell from Delicates, Wool, and Dry-Clean-Only Fabrics

You can't throw a wool coat or a silk blouse into a hot wash and hope for the best. Heat and agitation will shrink wool, distort silk, and ruin the structure of down-filled items. But these are often the exact fabrics that absorb mothball odor the most, since they're the ones people traditionally stored with moth repellents in the first place.

For wool, start with the same outdoor airing step, but extend it to 48 hours minimum. Then fill a basin with cool water and add one cup of white vinegar per gallon. Submerge the garment and let it soak for one to two hours, gently pressing the solution through the fibers without wringing or twisting.

Drain, rinse with cool water, and repeat if needed. Lay the item flat on a clean towel to dry, reshaping it as it goes. Never hang wet wool, as the weight of the water will stretch it out of shape.

Silk requires an even lighter touch. Use a diluted vinegar solution, one part vinegar to three parts cool water, and limit soaking to 30 minutes. Hand wash gently with a mild detergent, rinse thoroughly, and roll the garment in a towel to absorb excess moisture before laying it flat to dry.

Down-filled jackets and comforters are tricky because the filling traps odor inside. A front-load washer works best since the tumbling action is gentler than an agitator. Use an enzyme detergent on a warm cycle, run two rinse cycles, and air dry completely.

Expect the drying process to take 24 to 48 hours. Tumble drying on low with tennis balls can help restore loft, but only after you're certain the smell is gone.

For leather and suede, skip water entirely. These materials can't be washed without damage. Instead, use the activated charcoal absorption method described in the next section, or take them to a professional cleaner experienced with chemical odor removal.

Soak Treatments That Actually Work (and When to Use Each One)

Not all soaking solutions are created equal. The right one depends on the fabric, the severity of the odor, and what you have on hand. Here's a breakdown of the most effective options.

White vinegar soak. This is the most versatile and widely recommended method. Vinegar's acetic acid neutralizes the alkaline residue left by naphthalene and PDB. Use a 1:1 ratio of vinegar to water for heavy odor, or 1:3 for lighter cases.

Soak for one to six hours depending on severity. It's safe for most washable fabrics, including cotton, polyester, and sturdy blends.

Baking soda soak. Sodium bicarbonate is a mild alkali that absorbs odors rather than masking them. Dissolve one cup per gallon of cool water and soak garments for two to four hours. This works well as a follow-up to a vinegar soak, but don't mix the two in the same bath.

The acid-base reaction neutralizes both agents and reduces their effectiveness. Baking soda can leave a white residue on dark fabrics, so rinse thoroughly.

Enzyme detergent soak. Enzymes break down organic odor compounds at the molecular level. Add a heavy-duty enzyme detergent (like Persil Bio or Tide Plus Ultra OXI) to warm water and soak for one to three hours. This is particularly effective for naphthalene, which has organic molecular structures that enzymes can target.

It's safe for most machine-washable fabrics.

Oxygen-based cleaner soak. Sodium percarbonate, the active ingredient in products like OxiClean, releases hydrogen peroxide when dissolved in water. It's a powerful oxidizer that breaks down chemical residues. Use one scoop per gallon of warm water and soak for one to six hours.

It's color-safe on most fabrics, but always spot-test first. Avoid using it on wool, silk, or leather.

The Freezer Method: When and Why It Helaces

Freezing doesn't kill the chemical compounds in mothball residue, but it does slow down off-gassing enough to make other treatments more effective. It's a useful pre-treatment for items that can't handle liquid soaking, like structured jackets, hats, or shoes that have absorbed mothball odor.

Seal the garment in a plastic bag, squeeze out as much air as possible, and place it in a freezer set to 0°F (-18°C) or below. Leave it for 48 to 72 hours. The cold causes the volatile compounds to condense and partially solidify within the fibers, reducing the surface-level odor.

When you remove the item, let it come to room temperature in a well-ventilated area before proceeding with airing out or another treatment method.

This method has real limitations. It won't fully remove the smell on its own. It works best as a complement to other approaches, not a standalone solution.

And it's impractical for large items like comforters or bulky coats that won't fit in a standard freezer.

Odor Absorbers: Activated Charcoal, Coffee Grounds, and Other Passive Options

Sometimes you need a hands-off approach, especially for items that can't be washed or for maintaining freshness after treatment. Passive odor absorbers work by trapping VOC molecules in their porous structure, pulling the smell out of the fabric over time.

Activated charcoal is the gold standard. Its extremely high surface area, often exceeding 3,000 square meters per gram according to manufacturer specifications, makes it exceptionally effective at adsorbing naphthalene and PDB vapors. Place the garment in a sealed container or large bag with several activated charcoal sachets or loose charcoal in a breathable pouch.

Leave it for 24 to 72 hours, depending on odor severity.

Fresh, unused coffee grounds work on a similar principle. Fill a shallow container with dry grounds and place it in a sealed bag or box with the affected garment. Coffee grounds absorb odor and also release compounds that can help mask residual chemical smell.

Replace the grounds every 24 hours. This method is less effective than activated charcoal for heavy contamination, but it's a decent option for light odor or as a finishing step.

Cat litter (non-clumping, unscented) is another alternative. It's essentially bentonite clay, which has decent adsorption properties. Use it the same way as charcoal, in a sealed environment with the garment.

Baking soda in an open container can also help, though it's slower than the other options. Place an open box or bowl of baking soda in a closed closet or container with the garment and leave it for several days.

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One important note. These passive methods work best in sealed environments. If the container isn't airtight, the VOCs just escape into the room instead of being absorbed.

Use a plastic storage bin with a tight-fitting lid, a large zip-seal bag, or a garment bag that can be closed completely.

What Not to Do: Mistakes That Make the Smell Worse or Permanent

The fastest way to make mothball smell permanent is to apply heat before the chemical is fully removed. Tumbling clothes in a dryer, ironing them, or even washing them in very hot water on the first pass can cause any remaining naphthalene or PDB to bond irreversibly to the fibers. Always air dry until you've confirmed the odor is completely gone.

Don't mix cleaning chemicals. Combining vinegar with bleach produces toxic chlorine gas. Mixing vinegar with hydrogen peroxide creates peracetic acid, which is corrosive and irritating.

Stick to one treatment method at a time, and rinse thoroughly between different treatments.

Avoid masking the smell with heavy fragrances, fabric sprays, or scented dryer sheets. These don't remove the chemical, they just layer a perfume on top. The underlying VOC off-gassing continues, and you end up with a mothball-floral hybrid that's somehow worse than either smell alone.

Don't skip the pre-treatment airing step. Washing mothball-contaminated clothes without airing them first means you're trying to remove the full chemical load in the washing machine alone. That almost always takes more cycles and gives worse results.

Finally, don't assume one wash is enough. Most garments need two to four treatment cycles before the smell is fully eliminated. If you give up after a single wash, you'll think the method doesn't work when you just didn't go far enough.

How to Know When the Smell Is Really Gone

The honest answer is that mothball odor can linger at levels your nose stops noticing before the chemical is fully gone. This is called olfactory fatigue, and it's the main reason people think they've solved the problem only to have the smell return a week later.

Here's a reliable test. After your final wash and air dry, seal the garment in a clean plastic bag for two hours. Then open the bag and smell immediately.

If there's any chemical odor at all, the treatment isn't finished. The sealed environment concentrates whatever residue remains, making it detectable even when open-air sniffing suggests the clothes are fine.

Another approach is to ask someone else to smell the garment. A fresh nose is far more reliable than one that's been exposed to the odor for hours during treatment. If they detect anything sharp or chemical, go back to the soak-and-wash cycle.

Pay special attention to thick seams, pockets, collars, and layered areas. These spots trap more chemical residue and are the last places the smell dissipates. If the main body of the garment smells clean but the seams still carry a faint chemical note, those areas need additional targeted treatment.

Cleaning Your Washing Machine After Handling Mothball-Contaminated Clothes

Residual naphthalene and PDB can linger in your washing machine's drum, hoses, and rubber seals after washing contaminated garments. If you don't clean it, that residue will transfer to your next load of regular laundry.

Run an empty hot cycle with two cups of white vinegar added directly to the drum. Use the longest wash setting available. After that cycle finishes, run a second empty hot cycle with a washing machine cleaner or half a cup of baking soda.

Wipe down the rubber door seal with a vinegar-soaked cloth, paying attention to the folds where residue collects.

For front-load machines, also check and clean the drain filter. Mothball residue can accumulate there and cause persistent odor issues in future washes. If your machine has a "clean washer" or "tub clean" cycle, use it.

These cycles use higher water levels and more aggressive agitation specifically designed to flush out buildup.

How to Store Clothes Without Ever Dealing With This Again

The best way to handle mothball smell is to never create it in the first place. There are several effective alternatives that protect clothes from moths without leaving chemical residue.

Cedar blocks, cedar chips, and cedar oil are the most popular natural alternative. Cedar contains thujone, a compound that repels adult moths. Place cedar blocks in drawers and hang cedar sachets in closets.

The scent fades over time, so lightly sand the blocks every few months to refresh the surface and release more oil.

Lavender sachets work similarly. Dried lavender repels moths and leaves a pleasant, light fragrance. Combine lavender with cedar for a dual-repellent approach.

Airtight storage is the single most effective preventive measure. Vacuum-seal bags or hard-sided containers with tight lids physically block moths from reaching your clothes. No chemical repellent needed.

Store clean, dry garments only. Moths are attracted to body oils, food stains, and moisture, so washing clothes before storage removes the food source that draws them in.

For long-term storage of woolens and other natural fibers, the National Pesticide Information Center recommends using airtight containers combined with periodic inspection rather than chemical repellents. Check stored items every two to three months during moth season (spring and summer in most regions).

When to Call a Professional Dry Cleaner

Some situations are beyond what home treatment can handle. If you've run three or more full treatment cycles and the odor persists, it's time to call in a professional. Dry cleaners have access to industrial solvents and ozone treatment systems that can break down chemical residues home methods can't reach.

Ozone treatment is particularly effective. Professional machines generate ozone gas (O3), which oxidizes naphthalene and PDB molecules, breaking them into odorless byproducts. This is the same process used in smoke and flood damage restoration.

Not every dry cleaner offers it, so call ahead and ask specifically about ozone or chemical odor removal services.

Vintage and antique garments, heavily beaded items, and structured coats with complex linings are also worth taking to a professional. The risk of damaging these pieces with aggressive home treatment outweighs the cost of professional cleaning.

Expect to pay between $25 and $75 per garment for specialized odor removal, depending on the item and your location. Ask about guarantees. Many cleaners will re-treat at no charge if the odor returns within a specified period.

Safety Notes: What You Should Know About Naphthalene and PDB Exposure

Both naphthalene and paradichlorobenzene are more than just unpleasant smells. They're volatile organic compounds with documented health risks that increase with concentration and duration of exposure.

Naphthalene is classified by the International Agency for Research on Cancer (IARC) as a possible human carcinogen (Group 2B). Prolonged inhalation can cause headaches, nausea, and dizziness. For individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency, naphthalene exposure can trigger hemolytic anemia, a serious condition where red blood cells break down faster than the body can replace them.

Paradichlorobenzene carries the same IARC Group 2B classification. The National Institute for Occupational Safety and Health (NIOSH) recommends a workplace exposure limit of 15 parts per million (ppm) over an eight-hour period. In enclosed spaces like closets and storage rooms, concentrations can exceed this level when mothballs are used improperly.

When handling heavily contaminated clothing, work in a well-ventilated area. Open windows, use fans, and avoid breathing directly over the garments during sorting and treatment. Wear rubber gloves if your skin is sensitive.

If you experience dizziness, headache, or nausea while treating mothball-contaminated items, step outside for fresh air immediately.

Keep mothballs and moth repellent products away from children and pets. Ingestion of even a single naphthalene mothball can be fatal for a small child. The Consumer Product Safety Commission (CPSC) requires child-resistant packaging for these products, but storage in high, locked cabinets is the safest approach.

Dispose of used mothballs and moth crystals as household hazardous waste in most jurisdictions. Don't throw them in regular trash or flush them down the drain. Check with your local waste management authority for drop-off locations and guidelines.

Frequently Asked Questions

How long does it take to get mothball smell out of clothes?

For lightly affected garments, one to two treatment cycles over two to three days is usually enough. Heavily saturated items can take five to seven days of repeated soaking, washing, and airing. The key variable is how long the clothes were exposed and how concentrated the mothball product was.

Does vinegar or baking soda work better for mothball smell?

Vinegar is generally more effective because its acetic acid directly neutralizes the chemical residue. Baking soda works better as a follow-up or for light odor. Use them in separate steps, not mixed together, since combining an acid and a base cancels out both.

Can you get mothball smell out of clothes that have been stored for years?

Yes, but it takes longer. Years of saturation mean the chemical has penetrated deep into the fiber structure. Expect to run four or more treatment cycles and consider professional ozone treatment if home methods don't fully resolve it after a week.

Will dry cleaning remove mothball smell?

Standard dry cleaning may reduce the smell but often doesn't eliminate it completely. Ask your cleaner specifically about ozone treatment or chemical odor removal services. Not all shops offer this, so call ahead.

Is mothball smell on clothes dangerous to wear?

Brief exposure from residual odor on treated clothing is unlikely to cause harm for most adults. However, prolonged skin contact with heavily contaminated fabric or inhalation of off-gassing in enclosed spaces can cause irritation and other symptoms. Fully remove the odor before wearing, and prioritize treatment for children's clothing.

What's the fastest way to remove mothball smell from clothes?

The fastest reliable method is a combination approach. Air out the garment for 24 hours, soak in a vinegar solution for two hours, wash with an enzyme detergent and oxygen cleaner on the hottest safe temperature, and air dry. Repeat once if needed.

Most garments are odor-free after one to two rounds.

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