Interesting idea if it doesn't dry out during the exposure or buckle anyway. I assume you'll experiment with an insignificant negative before attempting one of value. But you'll get the emulsion
itself wet and fragile, and any uneveness at all in the drying rate will look a lot worse than Newton
rings. Sounds like you need a circulating air cleaner out there. When I first started out I developed
color paper in a drum in the bathroom, did masking work in a the furnace closet, and had the enlarger in a carpeted bedroom. Was that ever hell, esp with big un-retouchable Cibachromes. But
I still managed to bag a few distinctly highbrow gallery venues. Would be impossible to do it that way
now, with cats roaming around the house and shedding everywhere.