While i have no idea where this mold is, I would use the same products you'd use in your home.
More important, you need to fix the water leak that is causing this mold.
While cleaning the mold is fairly simple, it may not have been a leak that caused the mold to grow. It could have been the result of closing the camper when it was still wet from rain or overnight dew...don't wanna do that...
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2020 Forest River Flagstaff HW27KS
2019 Chevy Silverado
Navarre, FL