We use the O2COOL 10-inch AC/DC fans in our off-road POPUP camper. These seems to hold up great...
These most definitely help out for us moving air around the tent bed area. The biggest help is with condensation. Not fun waking up in th morning with water dripping on your head haha...
I also use these same O2COOL fans sitting behind my low profile oil-filled electric heater we us alot. There is only two of us camping so I will set up one oil-filled electric heater in the entrance door area and then a second one back in the corner of the unused tent bed. The oil-filled heaters is the most safe electric heater for us with no open flame or red hot cores, doesn't make any noise, and no burnt dust smell. This fan sits perfectly behind the electric heater to provide some heated air movement when you need it...
Roy Ken