Catalog · Physics of COVID-19 Transmission Lecture 32 of 49 Video 4-6: Safety Guideline for COVID-19—Safety Guideline as a Simple Formula ← Previous Video 4-5: Safety Guideline for COVID-19—Transient Aerosol Buildup Next → Video 4-7: Safety Guideline for COVID-19—Analysis of Superspreading Events ✓ Mark complete Materials Transcript (PDF) ↗ transcript