Say goodbye to musty smells and damp cupboards. Prep Marathon Dehumidifier Refill Bag 350g pulls excess moisture from the air to help stop mould spots, condensation, and stale odours. It is simple, quiet, and requires no power.
No special container required
Use it with what you already have at home. Just pour a portion of the crystals into a small open container such as a ramekin, takeaway tub, or jar without the lid. Place the container where you need moisture control and let the crystals do the work. You do not need a branded canister or a hanging device.
Why customers choose this refill
Instant setup with everyday containers
Fast moisture capture that helps reduce foggy windows and damp smells
Quiet and power free for wardrobes, pantries, bathrooms, and storage tubs
Flexible use split one bag across several small spaces
Great value cost effective way to freshen multiple areas
Quick start guide
Choose a small open container. Keep it clean and dry.
Pour in 2 to 4 tablespoons of crystals. Start small and add more if the area is very damp.
Place the container on a stable, upright surface in the target area.
Check weekly. When the crystals dissolve and liquid forms, empty responsibly and top up with fresh crystals.
Repeat until you have the dryness you want. Store the remainder in a sealed bag or jar.
Where it works best
Wardrobes and linen cupboards
Laundries and bathrooms with limited ventilation
Pantries, shoe cabinets, and storage tubs
Caravans, boats, sheds, and garages
Spare rooms and rentals that sit closed for long periods
Results you can expect
Fresher smelling fabrics and stored items
Less condensation on windows and walls
More comfortable, drier small spaces
Tips for best value
Use several small containers instead of one large one for faster results.
Place near the source of damp, such as behind closet doors or under sinks.
In very humid weather, refresh more often for consistent performance.
What you get
1 x 350 g bag of moisture absorbing crystals
Enough to treat multiple small containers around the home
Safety and care
Keep out of reach of children and pets
Do not ingest. Avoid contact with eyes and skin
If contact occurs, rinse with plenty of water
Dispose of used liquid and crystals according to local council guidelines
Store unused crystals in a sealed container in a cool dry place
Specifications
Brand
Prep Marathon
Type
Moisture absorber refill crystals
Net content
350 g
Power requirement
None
Typical duration
Up to 1 to 3 months per container, varies with humidity
Suitable areas
Wardrobes, cupboards, pantries, bathrooms, caravans, boats, storage tubs
Make it work for you
Buy one for the wardrobe and split the rest between the pantry, bathroom, and shoe cabinet. Small top ups keep everything fresh and dry without buying any extra gear.
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