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Samples in periodicals archive:
received official approval from the Department of Veterans Affairs for its Non-Invasive Open Ventilation (NIOV (TM)) System to be added to the Federal Supply Schedule (FSS).
But in urban settings there are considerable limitations to such an open ventilation system including noise, security, and pollution (Santamouris 2006).
The 2-by-6s raise the fiberglass above the surrounding roof, creating open ventilation strips at each end; Anderson filled these with window screen.