How to Get Rid of Sauna Smells
Sauna smells come from sweat soaked into wood and trapped moisture. Here is how to remove odours and stop them coming back with cleaning and drying.
The short answer
Sauna smells come from sweat soaked into the wood and trapped moisture. Fix them by cleaning the benches (including light sanding), thoroughly drying the room with the vents open, and improving ventilation. A towel under you prevents most of it.
A musty or sweaty sauna smell is almost always down to two things: sweat absorbed into bare wood, and moisture that never fully dries. Deal with both and the room smells like warm cedar again.
Find the source
- Benches are the usual culprit — sweat soaks into the bare wood where you sit.
- Trapped moisture under benches, in corners, or in duckboards breeds a musty smell.
- The floor and drain can hold standing water and odour.
How to remove the smell
- Clean the benches with warm water and a mild sauna cleaner; scrub gently.
- Lightly sand the benches — because the wood is bare, fine sanding lifts sweat stains and the odour with them.
- Clean under benches and the floor, including duckboards, and the drain if fitted.
- Dry everything thoroughly with the door and vents open, or run the heater briefly.
Stop it coming back
A fresh routine
Regular cleaning, thorough drying, a towel habit, and working ventilation keep a sauna smelling good for years. If a smell has set in, clean, sand and dry thoroughly once, then keep up the routine — and it will not come back.
Prevention beats cure
Once you have cleared an established smell, keeping it away is entirely about habit. Odour is fundamentally a moisture and sweat problem, so the two habits that prevent it are sitting on a towel — which keeps sweat out of the bare wood in the first place — and drying the room fully after every use with the door and vents open. Do those, and the smell simply never returns.
If a smell keeps coming back despite cleaning, the underlying moisture is not clearing. Check that the ventilation actually works, that duckboards and bench mats are lifted out to dry both faces, and that no water is pooling under the benches or in the floor. Fix the drying, and you fix the odour at its source.
Avoid masking smells with artificial air fresheners, which get heated and vaporised into the air you breathe. If you want scent, add sauna-safe aroma oils to the water you throw on the stones. Cleaning, sanding and above all thorough drying are what keep a sauna smelling of warm wood rather than a gym bag.
Frequently asked questions
Why does my sauna smell bad?
Usually sweat soaked into the bare bench wood and moisture that has not dried out. Both are fixable by cleaning, lightly sanding the benches, and drying the room thoroughly with the vents open.
How do you get sweat smell out of sauna wood?
Clean the benches, then lightly sand them — because the wood is unsealed, fine sanding removes the sweat-soaked top layer and the odour with it, leaving a fresh surface.
How do I stop my sauna from smelling?
Dry it fully after every use with the vents open, clean regularly, make sure ventilation works, and always sit on a towel to keep sweat out of the wood. Odour is fundamentally a moisture problem.
Can you use air freshener in a sauna?
Avoid artificial air fresheners — they get heated and vaporised into the air you breathe. Fix the cause with cleaning, sanding and drying instead. Sauna-safe aroma oils on the stones are the only scent to add.
Why does my sauna smell musty even after cleaning?
Because the underlying moisture is not clearing. Check that ventilation works and dry the room fully with the vents open; trapped damp under benches or in the floor keeps a musty smell returning.
How do you stop a sauna from smelling in the first place?
Sit on a towel to keep sweat out of the bare wood, and dry the room fully after every use with the door and vents open. Odour is a moisture and sweat problem, so those two habits prevent most of it.
Why does my sauna smell come back after cleaning?
Because the underlying moisture is not clearing. Check that the ventilation works, lift duckboards and mats to dry both faces, and ensure no water is pooling under benches or in the floor. Fixing the drying fixes the odour.
Can you use air freshener to hide sauna smell?
Avoid it — artificial air fresheners get heated and vaporised into the air you breathe. Fix the cause with cleaning, sanding and drying, and add scent only via sauna-safe aroma oils on the stones.
Is bench sanding effective for sauna odour?
Yes — because the wood is unsealed, light sanding removes the top layer of sweat-soaked wood and the smell with it, restoring a fresh surface. Combine it with thorough drying to keep the odour from returning.
