CLEVAST 850 ml at a glance
In short: the CLEVAST 850 ml scores 7,6/10 in our dehumidifier review (from €36). Biggest strength: 24 dB, almost silent. Main compromise: weak in the cold.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
CLEVAST 850 ml: what works and what doesn't?
What works well
- 24 dB, almost silent: Semiconductor technology without a compressor, quiet enough to run next to the bed at night
- Economical: Under 0.55 kWh per day in continuous operation, much cheaper than disposable granule boxes in the long run
- Automatic shut-off: Switches off when the tank is full, the button light changes from blue to orange as a reminder
- No refrigerant: Works purely physically by condensation, needs no chemical refrigerants
- Compact & light: At 11.4 × 16.5 × 23.4 cm it fits on any shelf, and the tank can be removed for cleaning
Points of criticism
- Weak in the cold: The 295 ml/day applies at 30 °C and 85 % humidity; in cooler, drier rooms it dehumidifies much less, so it is not for cold cellars
- Small tank: 850 ml fills quickly in high humidity, then it has to be emptied by hand, no hose drain
- No-name brand: CLEVAST is little known, the warranty and spare parts situation is hard to judge
Specifications in detail
| Type | Mini dehumidifier (Peltier/semiconductor) |
| Dehumidification | up to 295 ml/day (30 °C, 85%) |
| Tank capacity | 850 ml (removable) |
| Noise level | 24 dB |
| Power consumption | under 0.55 kWh/day |
| Dimensions | 11.4 × 16.5 × 23.4 cm |
| Shut-off | automatic when tank is full |
| Refrigerant | none (physical condensation) |
What does it cost to run?
A consumption of 0.55 kWh per 24 hours means, at the German electricity price of 35 ct/kWh, about 19 cents a day, or around €70 a year in continuous operation.
Calculation basis: 35 ct/kWh (German electricity price, 2026, rounded). Values from the manufacturer data sheet; actual costs depend on use and tariff.
Build quality & everyday use
What carries the CLEVAST 850 ml in everyday use: 24 dB, almost silent (semiconductor technology without a compressor, quiet enough to run next to the bed at night) and Economical (under 0.55 kWh per day of continuous running, much cheaper in the long run than disposable granule boxes). You have to be honest about the weaknesses: weak in the cold. The 295 ml/day applies at 30 °C and 85 % humidity; in cooler, drier rooms it dehumidifies much less, so it is not for cold cellars.
If you set the device up to save space, allow ventilation clearance of at least 5 cm at the sides and 10 cm at the rear, otherwise the compressor may overheat.
Who is the CLEVAST 850 ml suited to? (Buying advice)
Perfect for:
- ✓Bedroom and bedside table
- ✓Bathroom and wardrobe
- ✓Motorhome and small offices
- ✓Bargain hunters on a small budget
Less suitable for:
- ✕Large living spaces over 15 m²
- ✕Cold, damp cellars
Similar dehumidifier models
Frequently asked questions about the CLEVAST 850 ml
What room size is the CLEVAST suited to?
How loud is the appliance at night?
How often does the tank need emptying?
Does the dehumidifier use a lot of power?
Verdict: is the CLEVAST 850 ml worth it?
A solid option with a clear profile: if you can live with being weak in the cold, from €36 you get one thing above all: 24 dB, almost silent. Best suited to: bedroom and bedside table.
If you want to compare alternatives, you will find detailed data and reviews on our dehumidifiers comparison page.
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