Bathrooms are, of course, a vital necessity of modern life. Where else are you going to get some privacy to read these days? But, being as they’re home to a lot of condensation and moisture thanks to showers and the like, they also tend to be somewhat of a mold trap. Similarly, exhaust fans can burn a lot of electricity if they’re left on over time. So, how do you keep mold out of your bathroom? The DewStop can help.

The DewStop is actually quite clever in how simple it is. You just connect the DewStop to your bathroom’s exhaust fan, which is generally hooked up to a switch anyway, so you don’t even need to bring in an electrician; you can install the DewStop with a couple of screwdrivers in a few minutes.

Once installed, it appears to use a humidity sensor to detect whether or not your bathroom needs venting. So, just take a shower and the DewStop will kick on and get the fan going when it gets too wet. It automatically stops after thirty minutes, and if that’s too much, you can flip it on or off like a normal switch. It even comes with a blue LED so you can find the switch if for some reason you’re in the dark in your bathroom and need the fan. No, don’t tell us, we can guess.


Best of all, it’s not going to cost you a lot relative to what you’ll save in repair bill; a switch that operates just your fan is $45, while a fan and light switch will run you $55. True, that sounds like a lot for a light switch, but consider that your average mold removal job will run you in the four figures, and suddenly the cost seems like a lot less of a burden.

Dan Seitz

Dan Seitz is an obsessive nerd living in New England. He lives in the Boston area with a fiancee, a dog, a cat, and far too many objects with processors.