Exhalation Spreading During Nasal High-Flow Therapy at Different Flow Rates

CONCLUSIONS: Nasal high-flow therapy increases the range of the expiratory air up to more than 4 meters. The risk to pick up infectious particles could be increased within this range. Attachment of a surgical mask over the nasal high-flow cannula blocks the expiratory airstream.
Source: Critical Care Medicine - Category: Emergency Medicine Tags: Online Clinical Investigation Source Type: research