Supplement I: Infection Control in Healthcare, Home ... - CDC

These rooms have specific requirements for controlled ventilation, including: 1) a specified number of required air exchanges per hour (ACH) (i.e., 6 for old buildings; 12 for new construction or renovation), 2) monitored negative pressure relative to hallways, and 3) air exhausted directly to the outside preferably or passed through a high ... ................
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