I just bought a Dehumidifier practically like gold dust atm. My huge, north east facing bedroom is very very cold and prone to condensation the winter unless its heated constantly which is not practical. The dehumidifier has a Hepa filter so is an air conditioner as well. Used it for 24 hours cost pennies over that time. I have a smart meter so logged the amount on the meter when I first turned it on. Oddly enough it made the room a little warmer because it was drawing out the damp air.The difference is astonishing in air quality. Its got a smart mode which means it turns itself on and off as and when needed. Also it has a night mode which means its light are all turned off. Its not silent but its ok noise wise. I can put it in the middle of the house and open all the doors and it will draw the excess moisture in the air out of all the rooms at once. Its a game changer. I can put on my central heating knowing that its heating a drier house. Its also got a laundry mode so will assist in drying washing. I very rarely dry washing indoors but sometimes we have to.