The EcoAir DD1 Simple MK3 Dehumidifier can extract up to 7.5 litres of moisture per day in cold temperatures as low as 1ºc, so it's a very useful option for conservatorys, basements or garages that don't have dedicated heating, as well as unheated rooms in the home during winter months.

The sleek design extends to its touch-based control panel, which is clearly labeled, easy to read, and easy to operate. The built-in humidistat ensures that you always know the humidity level in your room, which the PuriCare will always keep at your preset level. Air filter: Some models come with a HEPA filter which helps to provide cleaner air in your home, which will be helpful for any allergy sufferers. 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. Compressor dehumidifiers work in much the same way as a fridge or freezer. They draw in air and cool it, condensing any moisture as it passes across a refrigerated coil. The water then drips off into a water tank below, while the air is reheated and released into the room. Compressor dehumidifiers can be noisy and may use more energy than other types, although new compressor technology and refrigerants are bringing improvements on both counts. They’re most efficient at warmer temperatures of 20°C and above, and your best bet if you need to remove lots of moisture from a larger space.

What's the best dehumidifier to buy?

If available, make use of timer or automatic shut-off features so the dehumidifier isn’t running continuously while you’re out of the house or asleep. Discover which retailers are rated highly by Which? members with our expert guide on the best and worst shops . How to dry clothes indoors during winter 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. This dehumidifier is designed for managing fairly low moisture levels in small rooms up to 15m² or 2200 cubic feet, so it isn't going to cope with major damp issues or be able to control humidity within an entire house like larger capacity dehumidifiers. That said, the ProBreeze 1500ml Mini dehumidifier still impressed us during testing, and as long as you don't expect too much of it, this mini dehumidifier has a lot of plus points, not least its affordability.

Smart features So-called 'smart' dehumidifiers can be controlled via a smartphone app as well as the standard control panel. This could come in handy if you want to turn your dehumidifier on or off or adjust the settings, such as fan speed, while you're in another room or even out of the house. Keep in mind that smart models tend to be more expensive. Dehumidifiers can use a lot of energy, especially if used inefficiently. The electricity required to power a dehumidifier can be generated from a mixture of burning fossil fuels, renewables, gas and nuclear. But as this is mixed up in the grid, you can’t guarantee it’s coming from a renewable energy source.

A compressor dehumidifier is the most common type in the UK as it works best in higher temperatures, such as in a heated home. The beauty of a desiccant dehumidifier is not only that they are typically quieter than compressor models, but they are ideal for smaller, unheated areas such as conservatories, campervans, garages, boats and cellars. They’re also fantastically efficient. The Princess isn’t as quiet as Meaco’s Arete models, but you can live with the 46dB it puts out at its highest fan setting, or the 40dB noise levels at low. It also has a useful laundry drying feature that makes the most of the vertical swing on the air output and the powerful fan. It’s simple to control, either through the app or via the built-in controls, and you can keep an eye on the current humidity level through a subtle “hidden” digital display on the front. Rival dehumidifiers have the edge on noise and performance, but the Princess gives you a great set of features at a very reasonable price. The other controls let you choose between quiet Sleep mode, powerful High mode for laundry and economic Low mode for daytime use. You can fine-tune these by setting the fan speed and desired humidity level (you’ll want it under 50 percent, see below). But that’s it. Very much a fire-and-forget machine. I like the way it looks, too. Although it’s an American company, there’s something reassuringly Swiss about it. Maybe that’s just me. The PuriCare also comes with durable and reusable air filter for that additional eco-friendly touch. You won’t have to worry about constantly replacing the air filter on this dehumidifier, reducing maintenance costs even further. Pros: