How to Get Rid of Musty Smells in RVs, Campers & Boats Before Winter Storage
As camping trips wind down and boating season comes to an end, it's time to start preparing your recreational vehicles for winter storage.
While winterizing engines, draining water systems, and protecting exteriors are usually at the top of the checklist, there's one important step that's often overlooked: odor prevention.
RVs, campers, and boats are particularly vulnerable to musty smells during the colder months. When enclosed spaces sit unused for weeks or months, trapped moisture, limited airflow, and lingering odors can create an unpleasant surprise when spring arrives.
The good news? A little preparation now can make a big difference when it's time to get back on the road or water.
Why Do RVs, Campers & Boats Develop Musty Smells?
Unlike traditional homes, recreational vehicles and boats often spend extended periods closed up without regular ventilation.
Throughout the summer, moisture can accumulate from wet clothing, swimming gear, cooking, humidity, and everyday use. Even small amounts of trapped moisture can become a problem when temperatures fluctuate and condensation develops.
Fabric seats, carpeting, mattresses, and storage compartments can absorb this moisture, creating conditions where mold and mildew may develop.
That familiar musty smell is often an early warning sign of excess moisture or hidden microbial growth.
And unfortunately, simply shutting the doors for winter won't make the problem disappear.
Start With a Thorough Interior Cleaning
Before putting your RV, camper, or boat into storage, take the time to give the interior a proper cleaning.
Remove leftover food, trash, damp towels, bedding, and any equipment that could hold moisture. Vacuum carpets and upholstery, wipe down surfaces, and check hidden areas such as cabinets, storage compartments, and beneath cushions.
For boats, pay special attention to storage lockers, upholstery, and bilges where moisture can collect. In RVs and campers, inspect areas around windows, sinks, bathrooms, and water connections.
The most important step is making sure everything is completely dry before closing it up.
If you discover visible mold or mildew, address the moisture source and clean the affected materials appropriately before storage. Odor treatments alone cannot remove existing mold growth or fix water damage.
Eliminate Lingering Odors Before Storage
Even after a thorough cleaning, unwanted smells can remain trapped in fabrics, carpeting, and other hard-to-reach areas.
This is where traditional air fresheners often fall short.
Most air fresheners work by introducing a stronger fragrance to temporarily cover unpleasant smells. However, when the fragrance fades, the original odor may still be present.
For stubborn odors, a more effective approach is to address the odor-causing compounds themselves.
At Lakota Naturals, our Chlorine Dioxide (ClO₂) Odor Eliminators use odor-neutralizing technology that works at the molecular level. Rather than masking unpleasant smells with heavy fragrances, chlorine dioxide reacts with odor-causing compounds to help eliminate them.
Our Auto-Fogger Kit and Chlorine Dioxide Tablets offer treatment options for enclosed spaces, including compatible RV and boat interiors. These treatments can help address lingering odors from damp gear, pets, food, and everyday use.
For the best results, always clean the interior and resolve existing moisture problems first. Choose a treatment appropriate for the space and follow all product instructions, including precautions for unoccupied treatment areas and ventilation before re-entry.
Keep Your Space Fresh Throughout Storage
Eliminating existing odors is an important first step, but what about keeping your space fresh while it's sitting unused?
Over the winter, changing temperatures and humidity levels can contribute to stale, musty air inside enclosed spaces.
That's why proper ventilation and moisture management are essential.
Where suitable for your storage setup, use a breathable cover, maintain appropriate airflow, and consider moisture-control products to help reduce condensation. Keeping cabinets and interior compartments open can also improve air circulation.
For ongoing odor control, AIRFresh250 Slow-Release Pouches offer another option.
These compact pouches gradually release chlorine dioxide over approximately 30–60 days, depending on humidity and environmental conditions. They're designed to help maintain freshness in enclosed spaces without relying on overpowering fragrances.
They can be a convenient addition to an RV or camper storage routine when used according to the product directions.
Remember, odor control and moisture control work together. Keeping a space smelling fresh does not replace the need to prevent leaks, condensation, or mold growth.
Don't Forget to Check In During Winter
Once your RV, camper, or boat is safely stored, it's tempting to forget about it until spring.
However, occasional inspections can help prevent small issues from becoming bigger problems.
Check for signs of condensation, water leaks, damaged covers, or unusual odors. Make sure moisture isn't collecting in hidden compartments, and replace maintenance products as needed.
These simple checks can help protect the interior and reduce the amount of cleaning required when warmer weather returns.
Store It Clean. Bring It Back Fresh.
Winter storage should protect your RV, camper, or boat, not leave you dealing with unpleasant odors when the next adventure begins.
By thoroughly cleaning, controlling moisture, and addressing lingering smells before storage, you can help keep your space in better condition throughout the off-season.
Whether you're packing away your camper after a busy summer or preparing your boat for months out of the water, taking care of the interior is just as important as protecting the exterior.
Get ahead of musty odors this winter. Explore Lakota Naturals' complete line of Chlorine Dioxide Odor Eliminators and AIRFresh250 Pouches to help keep your favorite recreational spaces fresh and ready for the next season.