like Don said give it a blast with the airbrush to remove any dust before painting, make sure the area your painting in is as dust free as can be, mist the air before painting and store it in a dust free box after. Like I said I've always kept my box upside down with the lid locked onto it. I have three dogs that shed enough for six and I can keep my model area dust and dog hair free for the most part. Also another thing I have is a air purifier in my model room I know that catches a lot of it.