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gone-ot · 08-02-2017, 02:59 PM

Unfortunately, that "grille" becomes OPAQUE to airflow at higher speeds, slowly approaching a solid blockage eventually. It's sorta like *how* the holes in microwave oven door/window screens stop the microwaves from coming out and cooking YOU.

08-02-2017, 02:59 PM	#27 (permalink)
gone-ot ...beats walking... Join Date: Jul 2009 Location: . Posts: 6,190 Thanks: 179 Thanked 1,525 Times in 1,126 Posts	Unfortunately, that "grille" becomes OPAQUE to airflow at higher speeds, slowly approaching a solid blockage eventually. It's sorta like how the holes in microwave oven door/window screens stop the microwaves from coming out and cooking YOU.