How to Remove the Smell of Mothballs From a Room

If you walked into a room and instantly noticed that sharp mothball odor, you already know it does not fade just because time passed. This is exactly how to remove the smell of mothballs when it has soaked into the air and the stuff around it. Start by stopping the source, then clean what holds the odor, and finally pull the remaining fumes out of the room.

For more help, see our How to Remove Mothball Odor Safely From Home and Basements guide.

Start by Removing the Source and Isolating the Odor

Mothball smell spreads fast, so the first job is to stop it from continuing to release fumes. Before you clean anything, locate the mothballs (or any storage packets) and isolate anything that could still be off-gassing.

Find every hidden mothball and storage packet

1. Search closets, drawers, under beds, behind dressers, and inside any bins or garment bags.
2. Check for mothball packs in storage trunks, vacuum-sealed bags, and shipping boxes.
3. Keep the door closed behind you while you look so the odor does not spread through the rest of the home.

Seal contaminated items in an airtight bag

1. Place any item that contains mothballs, or smells strongly when opened, into a heavy-duty trash bag or airtight tote.
2. Tie or seal tightly and move the sealed bag out of the room right away.
3. Do not leave mothballs loose on a shelf, in a drawer, or on the floor.

Open windows and create cross-ventilation

1. Open two windows on opposite sides of the room if you can.
2. Point a box fan outward in one window and, if possible, a second fan to pull air in through the other opening.
3. Ventilate for at least 1 to 2 hours before deep cleaning begins.

Clean the Surfaces That Hold Onto the Smell

Mothballs cling to dust, fibers, and porous coatings, so cleaning is what removes what is left behind. Focus on the materials that trap odor the most, then move to hard surfaces where residue settles.

Vacuum carpets, rugs, and upholstered furniture thoroughly

1. Vacuum with the highest suction you have, including edges, seams, and under cushions.
2. Empty the vacuum canister or change the bag right after, and seal the contents in a trash bag.
3. If you can, run a second vacuum pass in the opposite direction for better removal.

Wash walls, baseboards, shelves, and hard floors

1. Dust first using a damp microfiber cloth, then wash with warm water plus a mild detergent.
2. Pay extra attention to baseboards, corners, and shelf fronts where residue collects.
3. Dry quickly with clean towels so the room does not stay damp.

Treat fabric items with care so you do not spread the odor

1. Handle curtains, throw blankets, and other fabrics by keeping openings closed and moving items directly to laundry bags.
2. Wash with the hottest water the fabric allows, then dry fully before checking odor again.
3. If an item still smells after washing, do not rehang it. Air it out outdoors (away from living areas) before attempting another wash.

Use Absorbents to Pull Odor Out of the Room

Once you remove the source and clean, absorbents help capture leftover fumes in the air. Use them in shallow containers so the odor can contact the material instead of sitting at the bottom.

Set out baking soda in shallow containers

1. Place baking soda in shallow bowls (not sealed) around the room, focusing near windows and the areas where odor is strongest.
2. Use enough to cover the bottom of each bowl by at least 1/2 inch.
3. Leave for 48 to 72 hours, then replace if odor remains.

Use activated charcoal for stronger lingering odors

1. Put activated charcoal in breathable containers or an odor-absorbing bag (follow the product label for fill level).
2. Position containers around the room, not piled in one spot.
3. Replace charcoal every 3 to 7 days until the smell fades.

Try coffee grounds, vinegar bowls, or kitty litter only where appropriate

1. Coffee grounds absorb odors, but they also leave a scent. Use them only for short-term odor reduction, and keep them away from food prep areas.
2. Vinegar bowls can help with airborne odor, but they can smell strongly themselves. Use them while ventilation runs, and remove after 24 hours.
3. Kitty litter works as an absorbent in a pinch, but keep it in a container so it does not track or shed.

Freshen the Air Without Simply Covering the Smell

Good ventilation plus air cleaning beats masking. Use airflow and carbon filtration to remove odor molecules rather than adding fragrance that mixes with mothball fumes.

Run an air purifier with a carbon filter

1. Choose or set the air purifier to “max” or the highest continuous setting.
2. Confirm it uses activated carbon (not just a standard HEPA filter).
3. Run it for several hours at a time, keeping doors closed to maintain treatment within the room.

Use fans to speed up odor removal

1. Place box fans in windows blowing outward when possible to move contaminated air out.
2. Keep interior circulation going with a second fan aimed toward a doorway or another window.
3. Avoid blowing air directly across fabrics you just cleaned, so you do not re-distribute odor.

Avoid masking scents that mix badly with mothballs

1. Skip heavy deodorant sprays, scented candles, and plug-in diffusers while odor is still strong.
2. If you want a scent, wait until the room smells clean and then use only a light, non-persistent option.
3. If the room smells musty, focus on removal and cleaning, not perfume layers.

Handle Soft Furnishings and Porous Materials

Curtains, bedding, cushions, and closet items often hold odor longer than hard surfaces. Treat these pieces carefully because handling can spread the smell through the home.

Wash curtains, bedding, and removable slipcovers

1. Remove fabric directly into a laundry hamper or sealed bag.
2. Wash according to fabric care, using detergent, and dry completely.
3. For white or colorfast items, run an extra rinse cycle to pull out odor residue.

Air out cushions, blankets, and closet items outdoors

1. Place items outdoors in shade with airflow, so sun does not damage fabric.
2. Hang and separate pieces to improve circulation around all sides.
3. Bring items back indoors only after the odor drops to an acceptable level.

Know when an item is too saturated to save

1. If upholstery or thick cushions keep smelling strongly after vacuuming and airing, odor may be trapped deep in the padding.
2. In that case, consider professional cleaning or replacement for the worst-affected pieces.
3. Keep the item bagged when transporting to reduce spreading.

Prevent the Smell From Coming Back

Once the room smells clean, the goal is to stop future release. Storage setup matters, especially when mothballs are the source of fumes.

Store mothballs only in sealed containers

1. Use airtight bins or sealed garment boxes, never open containers.
2. Place mothballs inside the container as directed, then close the lid fully.
3. Keep containers in a closed closet or separate storage area, not in living spaces.

Replace old stored items before reintroducing them

1. Old stored fabrics can hold odor even after airing.
2. Replace mothball containers or refresh storage materials before returning items to the room.
3. Let garments and linens sit sealed only as long as needed, then air them briefly before use.

Choose safer pest-control and storage alternatives

1. Use sealed plastic bins for seasonal clothes, with tight lids and fresh liners.
2. Consider pest-control options designed for enclosed storage areas that do not keep releasing strong fumes into rooms.
3. Keep food, paper, and cardboard in sealed containers to reduce pest attraction without relying on mothball odor.

When the Odor Means You Need Extra Help

Most room cleanups work with source removal, cleaning, and odor absorbers. If the smell is intense or you have health symptoms, treat it as a bigger issue.

Watch for headaches, nausea, or breathing irritation

1. If anyone develops headaches, nausea, coughing, wheezing, or throat irritation, stop work and ventilate immediately.
2. Move people and pets out of the room until the odor level drops.
3. If symptoms persist after you leave the area, seek medical advice.

Call a professional for severe contamination

1. Contact an odor remediation or restoration professional if carpets, drywall, or built-in surfaces smell strongly after repeated cleaning.
2. Tell them the cause (mothballs) and how long the odor has been present.
3. Professionals can use targeted cleaning and odor control methods for deep-set contamination.

Dispose of mothballs safely according to local guidance

1. Keep mothballs sealed in their container until you can dispose of them properly.
2. Follow your local household hazardous waste rules for disposal.
3. Do not pour mothballs into sinks, toilets, or regular trash without checking local requirements.

Frequently Asked Questions

How long does mothball smell take to go away in a room?

It can fade in a few days with strong ventilation, but it may take weeks if the odor has soaked into carpets, drywall, furniture, or stored fabrics. Hard surfaces usually clear faster after washing, while thick upholstery and porous materials hold onto fumes longer. If the smell is still noticeable after deep cleaning and several days of odor absorbers, keep going with ventilation and repeated treatment of soft materials.

Does vinegar remove mothball smell?

Vinegar can help reduce airborne odor in some cases, but it works best as part of a bigger cleanup plan that includes ventilation, cleaning, and odor absorbers. Use it in a shallow bowl while windows and fans run, then remove it after 24 hours so it does not keep smelling up the room. Vinegar is not a substitute for removing the source and washing surfaces.

Is it better to cover up mothball smell or remove it?

Remove it if possible. Covering the smell may make the room more pleasant temporarily, but it does not address the source and can trap the odor longer. Fragrance products can also mix with mothball fumes and create a stronger, harder-to-remove smell. Source removal, washing, and odor absorption give you the most reliable outcome.

Can an air purifier get rid of mothball odor?

An air purifier with activated carbon can help, especially for lingering fumes in the air. It works best alongside source removal and deep cleaning, not instead of them. Run the purifier with doors closed to the room being treated, and use the highest setting for faster odor reduction.

What absorbs mothball smell the fastest?

Baking soda and activated charcoal are common first choices. For heavier odor, use them with ventilation and repeated cleaning of soft materials. Charcoal generally performs faster for stubborn fumes, while baking soda is helpful for ongoing odor absorption after cleaning. Replace or refresh the absorbent when odor persists.