0.9L vs 12 Litre Dehumidifier: Picking the Right Size
By Home & Kitchen Appliances – Morphy Richards UK | Published: 2026-11-02
Category: Buying Guides
Compare a 0.9L portable dehumidifier with a 12L room dehumidifier to match capacity, coverage and features to your damp problem.
Quick answer
Choose the 0.9L PureFresh for wardrobes, caravans, window sills and small bedroom corners where condensation is occasional. Choose the 12L PureFresh for master bedrooms or living spaces up to 24m² where you need consistent moisture removal and an air purifier function.
Why tank size is not the same as extraction rate
The 0.9L and 12L figures refer to tank capacity, not how much water the unit removes per day. A small tank means more frequent emptying; a larger tank suits longer unattended runs. Neither product record states an extraction rate, so judge by room size and how often you can empty the tank rather than by litres alone.
Match the unit to the room, not the whole house
The 12L model is specified for rooms up to 24m², which covers most master bedrooms and living rooms. The 0.9L model is described for small bedroom areas, wardrobes, closets, small kitchens, caravans and window sills. If you move a small unit into a large open-plan space, it will run constantly without solving the problem.
When an air purifier function changes the decision
Only the 12L PureFresh includes an air purifier function. If you want one appliance to manage moisture and help freshen the air in a main room, that feature justifies the larger unit. For a cupboard or caravan where air purification is irrelevant, the 0.9L model keeps things simple.
Decision rules for choosing between 0.9L and 12L
- Measure the floor area first: If the damp room is larger than roughly 24m², neither unit is specified for it; look for a larger-capacity dehumidifier. If it is a wardrobe, caravan or window sill, the 0.9L model is the intended fit. Write down the length and width before comparing models.
- Count how often you can empty the tank: Choose the 0.9L only if you can check and empty it frequently. Choose the 12L if you want fewer interruptions in a main room.
- Decide whether air purification matters: Pick the 12L PureFresh if you want the air purifier function in a living space or bedroom. Pick the 0.9L if you only need local moisture control.
- Check the placement surface: The 0.9L is described for window sills and wardrobes, so confirm a stable, level spot. The 12L needs floor space in the room it serves.
Product facts
- PureFresh 12 Litre Dehumidifier with Air Purifier Function - Grey: Suitable for rooms up to 24m² and features an oscillating airflow that swings between 45° and 90°. The wider swing helps distribute drying air across a master bedroom or living space rather than one spot.
PureFresh 12 Litre Dehumidifier with Air Purifier Function - Grey - PureFresh 0.9L Dehumidifier - Grey: Designed for small bedroom areas, wardrobes, closets, small kitchens, caravans and window sills, with automatic defrosting and a full tank reminder. Those features make it practical for tight, occasionally damp spots where you cannot monitor it constantly.
PureFresh 0.9L Dehumidifier - Grey
Which size fits your home?
Best for
- Wardrobes, caravans, window sills and small bedroom corners with occasional condensation
- Master bedrooms or living spaces up to 24m² where you want moisture removal plus air purification
Not for
- Whole-house or open-plan damp problems that need a larger-capacity unit
- Anyone who cannot empty a small tank regularly
