ANSIO Dehumidifier 500ml Pack of 10 Condensation Remover Moisture Absorber Dehumidifiers for Damp, Mould, Moisture in Home, Kitchen, Wardrobe, Bedroom, Caravan, Office, Garage, Bathroom, Basement

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Energy use: The Silentnight 39899 600ml dehumidifier also scores highly on energy efficiency. Although, as with the ProBreeze 1500ml, it's a shame there aren't any automatic humidity sensors so that the dehumidifier only switches on when it's needed (the MeacoDry Arete One Dehumidifier is our top recommendation in this respect), despite the fact it has to be left running, energy use is still relatively low thanks to its 23W energy use. That means it doesn't even cost 1p per hour to have running.

If you want a dehumidifier of a similar power and price point, the slightly more expensive ProBreeze 1500ml Mini Dehumidifier remains our best budget buy, offering a better extraction rate of 0.5L and a larger 1.5L water tank, which means you won’t be emptying it quite so frequently. That said, the ProBreeze 1500ml Mini Dehumidifier is also larger in size, measuring H30 x W22 x D16cm compared to the Russell Hobbs' H22 x W14 x D14cm frame. And, the ProBreeze 1500ml is twice the weight, weighing in at 1.85kg.

Air Purifiers

Then there's noise levels to consider, although as most of cheap dehumidifiers use Peltier condensers noise levels are already lower than more powerful compressor dehumidifiers. All dehumidifier's should give their operating volumes (measured in dB) in the specifications. Remove the plastic cap, and then remove the aluminium sheet (do not remove the white sheet beneath the aluminium sheet ). Unlike a compressor dehumidifier that passes air over a cold coil to condense the water from it, a desiccant dehumidifier uses a 'desiccant chemical' to absorb the moisture from the air. As a result, desiccant dehumidifiers are the best option for rooms that are likely to fall below 15°c, as at lower temperatures compressor and Peltier models can struggle to work efficiently. The cost of one kiloWatt-hour of electricity is capped at 27p under the Energy Price Guarantee as of October 2023. Although prices do vary by region and contract (economy 7 tariffs are more expensive by day and cheaper by night, for example), we use the capped price to estimate running costs. ProBreeze states the unit's energy consumption is just 40W. At current energy prices of 30p per kilowatt hour of electricity, that means the ProBreeze 1500ml Mini dehumidifier costs just 1p per hour to run.

It’s probably obvious that the larger the room(s), the greater capacity you’ll need. Rooms with severe damp problems also require larger capacities. Signs of severe damp include stains on walls, condensations on walls and, in the worst cases, wet floors. Water tank capacity is also reduced compared to the ProBreeze's super generous 1.5L tank, with the Silentnight model only able to hold 0.6L of water – which means you'll be emptying the tank a lot more frequently. With advice from air conditioning experts Ryan Kandola and Chris Wood and with help from others in The Telegraph Recommended team, I have tried and tested the best dehumidifiers on the market for energy efficiency, drying power, value for money and, where possible, quiet running. “Remember, size isn’t everything,” Ryan says. “Look at the area you’re dealing with and choose the right size of unit. You’ll be surprised at just how powerful some of the small dehumidifiers are.” High demandFor comparison, the MeacoDry Arete One 12L dehumidifier (which is a compressor dehumidifier) uses 151W of electricity which equates to 5p per hour, and the EcoAir DD1 Simple MK3 dehumidifer (a desiccant dehumidifier) uses 300W - 580W, costing between and 9p and 17p per hour to run. Noise levels