Catalog · Physics of COVID-19 Transmission Lecture 19 of 49 Video 2-3: Airborne Disease Transmission in a Well-Mixed Room—Air Filtration Versus Masks ← Previous Video 2-2: Airborne Disease Transmission in a Well-Mixed Room—Airborne Transmission Rate Next → Video 2-4: Airborne Disease Transmission in a Well-Mixed Room—Sedimentation and Deactivation ✓ Mark complete Materials Transcript (PDF) ↗ transcript