A dehumidifier can help clear out moisture in any room in your home, but basements are likely to benefit most from this device, as they can get pretty damp. A couple of features make or break a dehumidifier for basement use. Good dehumidification capacity is a must, as is a wide range of fan speed settings. The optimal fan speed to clear out moisture effectively depends on a wide range of environmental factors, and a fan speed that might work well in one room won't necessarily work well in the other. Read about our findings if you'd like to see a more in-depth examination of how your dehumidifier's fan speed can impact its ability to pull moisture from the air. Drain pumps are another helpful addition, as they allow the dehumidifier to pour any accumulated moisture into a faraway floor drain or sink on a tall vanity.
We've tested 20 dehumidifiers, and below are our recommendations for the best dehumidifiers for basements. We make our picks based on their dehumidification performance, price, and feature sets. For more options, check out our recommendations for the best dehumidifiers, the best small dehumidifiers, and the best dehumidifiers for bedrooms.
The best dehumidifier for basements we've tested is the Frigidaire FFAP5034W1. This 50-pint unit provides excellent dehumidification and is a great choice for larger dens. It has three fan speed settings, generating between 275 CFM (Cubic Feet per Minute) and 179 CFM of air movement. This flexibility makes it especially well-suited for basements with daily variations in ambient humidity and temperature. Not only does it feature a fairly large 2.2 gal (8.3 L) water tank, but you can also connect a hose to its drain port for continuous drainage or use its built-in pump to have it drain into a faraway spot. Additionally, it's impressively energy-efficient, with an Energy Star rating of 1.9 L/kWh, so you won't notice a huge increase in your energy bill, even if you leave it running for extended periods.
With all that said, it's worth noting that this dehumidifier makes a lot of noise at its highest fan speed and produces a fair amount of heat, so you might want to keep it far away if you use it in a finished basement where you watch TV or entertain guests. While this dehumidifier isn't the largest 50-pint model on the market, you can look at the Midea MAD50PS1QWT if you want something a little smaller but with the same capacity. Just be aware that it's even noisier than the Frigidaire and generates more heat.
If you're shopping at a mid-range price point and have a smaller basement that doesn't require as big a machine, the Midea MAD35S1QWT is among the best dehumidifiers for basements we've tested. It's outgunned in terms of raw capacity compared to the Frigidaire FFAP5034W1 above, and it has a harder time clearing out moisture in big, open-concept dens, though it'll still do fine in medium-sized basements. This device is Wi-Fi enabled, so you can operate it remotely through the MSmartHome smartphone app. You can also use voice commands through Amazon Alexa and Google Home devices. Just ensure your basement has good Wi-Fi connectivity if you want to operate it remotely.
This dehumidifier has two fan speeds that provide a smaller spread of air than the Frigidaire above, making it slightly less flexible in different ambient conditions. While its collapsible design saves on space when the unit isn't in use, this is still a pretty bulky machine when fully deployed, especially when compared to other 35-pint models. Its 4.2 gal (16.0 L) water bucket gets pretty heavy when filled, too, making it a nuisance to empty. That said, if you'd rather drain it into a sink in a furnace room or faraway floor drain, you can detach it from its water bucket, hook up a hose to its drain port, and activate the built-in pump.
Our best budget pick is the Waykar PD160B. This model is fairly compact, making it a good option for smaller basements. Besides, it has a relatively small 8.5-pint capacity, so it'll struggle to remove moisture from larger rooms. It doesn't make a lot of noise, which is great if you use your basement as a bedroom, and it also generates very little heat. You can set your desired humidity level and let the unit adjust its fan speed automatically, so you don't have to fiddle constantly with the settings while it runs. It lacks a built-in pump to drain the water into an elevated receptacle, but it does have a hose for continuous drainage. Unfortunately, the display is rather dim, and its poor viewing angles make it almost impossible to see unless you're directly above it.
If you only need a dehumidifier for pulling the moisture from a small space in your basement, like a storage closet under your stairs, the ProBreeze PB-03 is worth a look. It's a much different proposition than the other, more conventional models on this list; its dehumidification capacity is downright pitiful even when compared to the Waykar PD160B's already modest performance. Of course, it isn't intended for the same purpose—the ProBreeze's highly compact size makes it a cinch to fit in tight spaces. If you stick it in an enclosed room or semi-enclosed area, it'll be almost inaudible, as it emits only 44.6 dBA of noise while running. Its heat output is also practically negligible.
This dehumidifier has a very small water tank and lacks a port for continuous drainage. However, since its dehumidification rate is so slow, neither of those things is a significant concern, as you'll only really need to empty the tank every week or so. Besides, it shuts off automatically when the tank is full, so there's no need to worry about overflow.
The ProBreeze PB-02 is a compact dehumidifier and is even smaller than the ProBreeze PB-03. That said, given the relatively minor difference in size between the two devices, the PB-03 offers noticeably better dehumidification capacity and has a bigger water tank.
See our reviewOur recommendations above are some of the best basement dehumidifiers for most people. We factor in the price, feedback from our visitors, and availability.
That said, no single best option will suit everybody; your needs will depend on your budget, the size of your basement, your tolerance for operating noise, and whether you like having a device with convenience features like Wi-Fi connectivity or a drain pump. If you'd like to choose for yourself, here's the list of all our dehumidifier reviews.