Why Does My Wardrobe Smell Musty? Causes and How to Fix It
by The Dew Team on Jun 09, 2026
If your wardrobe smells musty, the cause is almost always excess moisture creating mould or mildew on fabrics, leather, or the wardrobe itself. That distinctive damp, earthy smell is the byproduct of microbial growth — and once it starts, it spreads quickly to everything stored nearby. The good news: it's fixable, and very preventable.
What causes a musty wardrobe smell?
A musty smell in your wardrobe comes down to one core issue: trapped humidity. Wardrobes are enclosed, poorly ventilated spaces. When the surrounding air is humid — and most of coastal Australia is for much of the year — moisture seeps in, condenses on cooler surfaces, and feeds mould spores that are already floating in the air. If you're not sure how humid your space is, a quick read of how to test the humidity in your home walks through the easy ways to measure it.
The most common culprits are:
- High indoor humidity (above 60%), which is normal in Sydney, Brisbane, the Gold Coast, and most coastal cities for much of the year
- Damp or partially dry clothes put away before they've fully aired out
- Leather goods like handbags and shoes that hold moisture for days
- Poor airflow in tightly packed wardrobes
- Water leaks or condensation on shared walls, especially exterior or bathroom-adjacent walls
How to tell if it's mould or just stale air
Stale air smells flat and dusty. Mould smells sharply earthy, with a distinct "damp basement" or "wet cardboard" note. If you can smell that sharper note, mould is already growing — even if you can't see it yet. For a deeper look at the early visual cues, our guide to the signs of mould in your wardrobe covers what to look for before it spreads. The most common indicators:
- Dark spots or fuzzy patches on clothing, especially around shoulders and underarms
- White powdery residue on leather bags, belts, or shoe interiors
- Discolouration on the back wall or shelves of the wardrobe
- A smell that returns within days of washing affected items
Five ways to fix a musty wardrobe
1. Empty it and air it out
Remove everything, leave the doors wide open for 24–48 hours, and run a fan if you have one. This is non-negotiable — you can't treat a wardrobe full of damp clothes. If you're going to do the job once, you might as well do the full 7-step wardrobe spring clean while everything's out.
2. Wipe down all surfaces
Use a 1:1 mix of white vinegar and water. Vinegar kills around 80% of mould species and won't damage timber or paint. Avoid bleach — it discolours fabric and timber, and the smell lingers for weeks.
3. Wash anything that might be affected
Add half a cup of white vinegar to your normal wash cycle for items that may have been exposed. For dry-clean-only pieces, hang them in direct sunlight for several hours — UV kills mould spores.
4. Address the humidity
This is the step most people skip, and it's why the smell comes back. You need to actively reduce the moisture inside the wardrobe. A hanging moisture absorber like Dew. pulls excess moisture from the air continuously and is purpose-built for enclosed spaces — far more practical than running a dehumidifier in every wardrobe. If you're weighing options, our comparison of moisture absorbers vs silica gel vs dehumidifiers covers what works best where.
5. Improve airflow
Don't pack clothes shoulder-to-shoulder. Leave a finger's width between hangers. Keep wardrobe doors open for an hour each day if you can, especially after stretches of humid weather.
How to keep your wardrobe smelling fresh long-term
Once you've cleared the mould and dried things out, prevention is the whole game. Our broader guide on stopping mould growing on clothes in humid Australian homes goes deeper, but the essentials are:
- Always dry clothes fully before putting them away — even slightly damp items will restart the cycle
- Use a moisture absorber year-round in humid climates, or seasonally in drier ones
- Add a natural scent like lavender or cedar — they don't kill mould, but they mask staleness and signal that the space is being maintained
- Rotate stored items like winter coats or rarely worn pieces, giving them a quick air every few months
- Check leather goods monthly — they're usually the first things to show mould
Frequently asked questions
How long does it take to get rid of a musty wardrobe smell?
With a proper deep clean and a moisture absorber in place, the smell usually disappears within 3–7 days. Persistent smells after that point usually mean there's a hidden moisture source — a leak, condensation, or damp gyprock — that needs addressing.
Will the smell go away on its own?
No. If anything it gets worse, because the mould keeps growing as long as the moisture is there. The smell is a symptom — fix the cause.
Is wardrobe mould dangerous?
For most people it's an irritant rather than a serious health risk. People with asthma, allergies, or compromised immune systems should be more cautious — our piece on whether household mould is actually dangerous goes into the research.
What's the best moisture absorber for a wardrobe?
For enclosed wardrobes, hanging moisture absorbers work better than tub-style ones because they sit at clothing height, where humidity actually settles around fabric. Look for one that lasts at least 60 days and is sized for the volume of your wardrobe.
A musty wardrobe isn't a one-time clean. It's a humidity problem dressed up as a smell problem. Solve the humidity, and the smell goes with it.
