Catalog · Physics of COVID-19 Transmission Lecture 31 of 49 Video 4-5: Safety Guideline for COVID-19—Transient Aerosol Buildup ← Previous Video 4-4: Safety Guideline for COVID-19—Steady Transmission Rate Next → Video 4-6: Safety Guideline for COVID-19—Safety Guideline as a Simple Formula ✓ Mark complete Materials Transcript (PDF) ↗ transcript