I agree... I have hatched a lot of chicks, and they stay inside and I don't smell them, nor does my wife. To show how off the deep end we are, We have 4 seramas in our room at night since they were tiny little chicks. No dust, a little pine shavings out of the cage everyonce in a while, but a quick cleanup. I keep hearing about dust, and all this stuff, but just have not ever seen it. Nice and tidy.. now I guess of you had OCD then yes, it would be an issue. But we clean the cage (which is the LARGE dog kennel with little cardboard partitions and nesting boxes, a couple times a week. But now they go outside on good days for a while. Good days being not rainy or extreamly cold.