World Health Organization (WHO) - Good ventilation protects you from COVID-19 infection: ✓ Open window ✓ Create a cross breeze ✓ Place a fan in front of a window facing the outside
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2015 International Residential Code and Commentary Volume 1 (IRC) - Chapter 4: Foundations - R408.1 Ventilation .
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5 Inch Round Air Vent, HG Power ABS Louver Grille Cover with Built-in Screen Mesh, White Soffit Vent for Bathroom Office Kitchen Ventilation - Opening Size 4.56" - - Amazon.com
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