Pro Breeze Electric Mini Dehumidifier, 1200 Cubic Feet (150 sq ft)

Finding mold in your RV can draw out a lot of different emotions and thoughts. Get focused because it can cause a whole lot of issues if you do not act fast.


Mold is most frequently caused by humidity. Humidity can become an issue in your RV whether your RV has been or is in storage, or if you use it full time. Even with the colder, drier air found in the winter months, if your RV stays closed up for an extended period of time, moisture can still build up inside.

mold in rv under mattress
Under Mattress Pad

Humidity levels can rise due to several causes, such as cooking, taking a shower, making coffee, the weather, and even just breathing. Anytime water, especially hot water, is used in your RV, the potential for high humidity is there. Just like in a home, this can lead to wood rot and metal corrosion in your furniture, walls, floors, and the structure itself. It also causes the growth of mold & mildew, which can become a serious health hazard. Warm, damp air in your RV can also attract certain bugs and insects (super gross!)


One way to tackle this issue out is buying a dehumidifier that removes a certain amount of moisture from the air and deposits it in a container that you have to empty periodically.

The picture above is how we learned the hard way. Between all 7 of us (Me, David, 2 kids, 3 dogs) all breathing in a small confined space and the kids spilling liquids in their bunks, we found mold between the wall and mattresses. We threw out all the mattress pads and treated the area. We now are more aware to open a window or the roof vent to air out the RV when we are cooking or taking a shower (common sense right? NOT!) The humidifier runs 24/7!

Condensation on windows.
Windows Sweating

Be sure to wipe the windows and wall with something like this shamwow, lower the temperature inside, get the dehumidifier going and stop breathing. Just kidding on the last part.

Humidity and mold in an RV can seriously wreak havoc and cause serious health issues so take care early to keep the temperature and humidity in check with one of these nifty tools below.

ThermoPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor


If you happened to land yourself in a situation where mold has made its way into your RV do not despair. Here are a few things you are going to want to do:

  • Wear old clothes and shoes that you can launder or throw away after the cleanup work.
  • Wear a respirators, in addition to goggles and gloves.
  • Ventilate the RV while working.
  • Wrap and tape moldy items in 6-mil plastic, and double-bag mold-infested items in garbage bags for disposal.
  • To control airborne spores, moisten moldy areas while you work.
  • Turn off your furnace and air conditioner and cover ducts and doors to contain mold spores
  • Keep your wet/dry vacuum outside when you vacuum.

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