Wow, 3 weeks and you haven't noticed any 'dust'. You are lucky! Well maybe I'm just unlucky? I had 2 batches of chicks in my living room, one after another and OH MY did they make a mess! I has them in a huge plastic tote and the litter was changed daily. My living room had layers of chicken dust on everything. It was really bad! I don't think I will have them back in the house again. For now on I am going to put them in the laundry room where its much easier to clean. Also is that cage/coop that you posted going in your kitchen? That thing is HUGE! Your kitchen must be big!