However here is a question for you... what about pets? Dogs or cats?
I have a yellow Labrador. We have a large enclosed patio (enclosed with fly-screen, tin roof). He lives on that with access to the yard. However, he sheds like crazy, so we still get some hairs inside. He is not allowed inside. If i take him for a walk, I usually take him through the side gate, very rarely do I take him through the house.