We’re not saying that size is everything, it’s just that when it comes to dehumidifiers, it kind of is. Although maybe capacity is a better word. Basically, if you’ve got a large room you want a dehumidifier that can remove a large volume of water, otherwise it’s like trying to bail out an ocean liner with a teacup—it’s going to take a while, and you might find the water comes in faster than you can bail it out. So, measure your space, and buy accordingly. Quick point: the Department of Energy changed its testing protocol in 2019. Dehumidifiers used to be tested to see how much water they could remove in 24 hours at 80°F and 60% relative humidity. Now they’re tested at 65°F and 60% relative humidity, which means that a machine that was certified to remove 70 pints in 2012, would only get a 50 pint rating in 2019, so make sure you’re comparing ratings from the same year for like-for-like comparisons.