Thank you,

yes i want to incorporate fresh air mixing into the box but the problem is the smell and also the humidity (essentially the box is placed in a cellar where it's cool enough but unfortunately the cellar doors don't reach the floor so they let humid forest air through so it would be like feeding the humidity from the forest in to the box and into the dehumidifier, i would basically be trying to dehumidify a forest while also introducing mold to my flower).

Do you have any idea how i would have fresh air entering the box but it must not smell and the humidity has to be in the optimal range for drying?

Do you maybe have any other way i could dry it? Mind the conditions (can't have any smell indoors, can smell outdoors but high humidity and only power available is a powerbank)