We've highlighted the best dehumidifiers we've tested, while our expert guide explains your options and takes a closer look at whether you need a refrigerant (compressor) or desiccant model. If you’re running a dehumidifier, keep the door to the room the dehumidifier is in open, so that air can circulate through your home. A dehumidifier's size or capacity describes how many litres of water it's able to extract from the air each day (which is different to the water tank capacity).

Many dehumidifiers, such as compressor dehumidifiers, are not very efficient when the air temperature is lower than about 65 °F (18 °C). Look for the crossed-out wheelie bin symbol on your dehumidifier, as this is an indicator that it can be recycled.

After using the absorber, there was only a small amount of condensation around the edges of the glass (as in the picture below). Breathing wet air decreases your immune system's ability to fight airborne viruses and seasonal respiratory infections.

Which one you need depends on the size of the space you want to use it in, how many people are living in the home generating moisture through activities such as cooking, washing and doing laundry, and the extent of your damp problem. If you do need to dehumidify a cold space, you can purchase a dehumidifier specially made for working at lower temperatures. When I put the heater on, it gets warm very quickly, but, as soon as I turn the heater off, the room cools down really quickly. Cooler weather increases the possibility of frost build-up on the machine’s coils, interrupting its efficiency and potentially damaging its operation.Many laundry settings just whack up the power to max for a set time, although some are designed to save energy by optimising the machine's performance so it doesn't work harder than it needs to. Dehumidifiers produce a lot of water, depending on the relative humidity of the room in which it is operating. A dehumidifier works in tandem with air conditioning units, making your AC work more efficiently and keeping the room more comfortable and cool.

as real users, posing a threat to a site’s security, so the site sometimes runs random security checks. These machines can be portable or installed more permanently in your home, and they can be used to reduce the relative humidity level in your home, reduce allergies or other respiratory health problems, and make your home more comfortable overall. Smart moisture extraction – perfect for removing damp and moisture from your home, this dehumidifier with 24 hour timer will extract up to 12L of moisture per day. Dehumidifier manufacturers have started to update their older models or create new ones using refrigerant gases with less of a global warming impact, such as R290.If you’re purchasing from a private seller, be aware that, unlike retailers, they are not obliged to proactively highlight any faults. You may have to remove the filter though and put it with your normal household waste, as this might not be suitable for recycling.