You can try setting in inside a cardboard box, with a clean cover(like a bankers file box,but be sure to shake off any carboard dust first, before you get it near the painting!). Some artists have shelves like the bakers racks , where it sits on sheet aluminum with another(like a cookie tin) is above. I do NOT recommend saran wrap or any plastic wrap, as those may cause chemical changes in the paint.There are drying agents, too, at your local art store, that speed up the drying process. Keep any animals away from paintings! Fur is hard to remove!
