What do people do?

[busby]

Yes. So the dehumidifier is causing ventilation, and air movement which is what I want in my van, as do many of the posts above.

Can't see many posts above that agree..BUSBY,,

 

[Lenny HB]

Don't do anything apart from wash the bedding & carpets after the last trip and put them back in ready for the next trip. Don't open the lockers as they are spaced off the wall for ventilations so not necessary.
Don't heat the van when not in use as warm air holds more moisture, dehumidifiers are a waste of time as Motorhomes have permanent ventilation so all you are doing is sucking water out of the atmosphere.