How long does it take moth balls to stop smelling?

Author: scraper  |  Last update: Sunday, September 6, 2026

The smell of mothballs can last anywhere from a few weeks to several years. The odor lingers because the chemicals (naphthalene or paradichlorobenzene) are volatile, sublimating directly from a solid into a toxic gas that seeps into porous surfaces like clothing, carpet, and wood.

Will mothball smell ever go away?

Yes, the mothball smell will eventually go away, but it can be notoriously stubborn. Because the chemicals (naphthalene or paradichlorobenzene) sublimate from a solid directly into a gas, the vapors embed deeply into fabrics, wood, and surrounding materials. The odor can take anywhere from a few days to several months to completely dissipate.

Is it safe to breathe in the smell of mothballs?

Yes, inhaling naphthalene balls (commonly used as mothballs) is harmful. Because these balls sublimate from a solid directly into a toxic gas, smelling them means you are actively inhaling an insecticide. Prolonged exposure can lead to severe health risks.

How to get rid of mothball smell quickly?

Place bowls of white vinegar (notice a theme?), an open box of baking soda, or a bowl of coffee grounds in the closet, and change it out frequently until the scent is absorbed and gone.

How do you dissipate the smell of lingering mothballs?

Q4: What is the fastest way to remove mothball odor?

  1. Steam treatment to break down odors quickly.
  2. Washing with vinegar or baking soda to neutralize smells.
  3. Ventilation to speed up dissipation.
  4. Activated charcoal or baking soda to absorb lingering odors.

What kills the smell of mothballs?

Is it safe to have mothballs in the house?

Mothballs should not be placed in closets, attics, basements, storage chests or trunks, garment bags or other spaces other than in tightly closed containers as explained above. Gasses from the mothballs escape into the air and can cause respiratory problems.

What is the best odor eliminator for mothballs?

A box of baking soda.

Tried and true, baking soda is one of the best odor eliminators for your household. Place it anywhere the mothball scent is the strongest and let the baking soda work its magic.

What does mothball smell do to you?

Moth balls contain a toxic chemical, either naphthalene or paradichlorobenzene. Both become a gas when exposed to air and cause that pungent moth ball smell. These gases are irritating to the eyes and lungs and may cause headache, dizziness and nausea. They are both suspected of causing cancer.

Why is it illegal to use mothballs outside?

Using mothballs outside is illegal because they are classified as restricted-use pesticides, and the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) dictates that using them outside of sealed, airtight containers violates their approved EPA label. Outdoor use releases toxic, cancer-causing fumes, contaminates soil and water, and poses severe poisoning risks to children, pets, and wildlife.

What essential oils get rid of mothball smell?

“If you're not demolishing and taking shelves out,” Charlton said, “the most effective way to remove the smell — and it's the simplest thing ever — is lavender oil.” Scatter lavender sachets around the space and dab lavender essential oil directly on the shelves with your fingertip or a cotton swab.

How long are mothballs toxic?

Mothballs are actively toxic for as long as they are emitting gas. Because they are made of concentrated pesticides, they pose a health risk from the moment they are unwrapped until the physical solid completely dissolves or evaporates.

Do moth balls make your house smell good?

Putting mothballs around your house might sound like an easy fix, but the truth is they rarely keep wildlife away and often leave behind bigger problems. From toxic fumes to soil contamination and even legal risks, the downsides far outweigh the temporary relief of a strong odor.

What is a safer alternative to mothballs?

Ditch the toxic pesticides and protect your wardrobe with natural, pet-safe repellents. Swap mothballs for cedar blocks, lavender sachets, or herbal pouches made from dried cloves, rosemary, or thyme. For active monitoring, use pheromone-based moth traps.

Why don't we use mothballs anymore?

In addition to their cancer risks, mothballs are known to cause liver and kidney damage. 1,4-Dichlorobenzene is a neurotoxin. It has been abused as an inhalant, causing a variety of neurotoxic effects. Mothballs containing naphthalene have been banned within the EU since 2008.

Is it okay to breathe in the smell of mothballs?

Yes, inhaling naphthalene balls (commonly used as mothballs) is harmful. Because these balls sublimate from a solid directly into a toxic gas, smelling them means you are actively inhaling an insecticide. Prolonged exposure can lead to severe health risks.

Why do people use mothballs in their house?

People use mothballs in their homes to kill or repel clothes moths, carpet beetles, silverfish, and their larvae. They contain potent pesticides (naphthalene or paradichlorobenzene) that turn from a solid into a toxic vapor as they sublimate, trapping the gas to protect stored fabrics.

What animals will moth balls keep away?

Mothballs are designed to keep away clothes moths, silverfish, and carpet beetles that damage fabrics. While many people use them to repel nuisance wildlife—such as mice, rats, squirrels, snakes, and skunks—experts warn that they are largely ineffective, unsafe, and illegal to use for this purpose.

What happens to mothballs when left for a long time?

Both active ingredients are solid chemicals that slowly become fumes at room temperature. The fumes kill clothes moths when trapped inside sealed containers. Mothballs slowly disappear as they turn into gas and mix with the surrounding air.

Can I put mothballs in my sink?

Many people put mothballs in their sink and urinals. The problem is that mothballs slowly change to a gas when they are exposed to air. Breathing in the fumes over a period of time can cause poisoning. Mothball fumes are heavier than the air and can accumulate along the floors affecting pets and children.

Is it bad to sleep in a room with mothballs?

No, you should not sleep in a room with mothballs.

How long does it take for mothballs to stop smelling?

The smell of mothballs can last anywhere from a few weeks to several years. The odor lingers because the chemicals (naphthalene or paradichlorobenzene) are volatile, sublimating directly from a solid into a toxic gas that seeps into porous surfaces like clothing, carpet, and wood.

What are the signs of mothball poisoning?

Inhalation of naphthalene may cause skin and eye irritation; gastrointestinal symptoms, such as nausea, vomiting, abdominal cramps, and diarrhea; neurologic symptoms, such as confusion, excitement, and convulsions; renal problems, such as acute renal shutdown; and hematologic features, such as icterus and severe anemia ...

What bugs hate the smell of mothballs?

Mothballs are round discs of solid pesticides with the active ingredient naphthalene, camphor, paradichlorobenzene (dichlorobenzene). These solid discs release vapors that are toxic to moths and moth larvae, eliminating them or deterring them from the area.

How do I get my house not to smell like mothballs?

Eliminate stubborn mothball odors by removing the physical source and maximizing ventilation. Neutralize lingering airborne fumes and residues using odor absorbers like baking soda, activated charcoal, or white vinegar. Deep clean affected surfaces, and run an air purifier with a HEPA and carbon filter.

Can air purifiers help with mothball smell?

Eliminating persistent odors like mothballs and their associated gases often requires combined methods like air purifiers, ensuring ventilation, and using odor-neutralizing products.

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