This is how I dry my paintings after 1st coat. It is usually very wet that I leave it in sun after it is “semi-dry” touch-dry. Once after it is touch-dry t doesnt attract a lot of dust over it. After it is completely dry I bring it inside the studio and dust it off with small amount of cotton, very slightly dipped in linseed oil and apply second coat. After the second coat until the painting finishes it stays inside the studio.