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Facial masks used during bronchoscopy. Left, A, and right, A: The surgical mask helps prevent spread of droplet infection from the surgeon into the open surgical wounds. Left, B, and center, B: N95 particulate respirators help prevent spread of airborne infection from patient to the bronchoscopy personnel, and filter 95% of particles > 0.3 μm. Prefitting is required. Top, C: PAFR hood.
