Yep, I was talking about the outer grill screen. All kidding aside, my point was that the outer grill does a really good job and being a pre-filter for the inner screen (next to radiator).
I wish my outer grill was self cleaning. It depends on what you get in it I guess. I find dandilion seeds and hay both stick to it really good even when the machine is off /forums/images/graemlins/smile.gif.