king county air ventilation

Infographic by Mark Nowlin for The Seattle Times, sourced from the Centers for Disease Control and Prevention, illustrating how various ventilation methods (no ventilation, open window, portable HEPA air filter, HVAC system) reduce airborne particles that may contain coronavirus. Data shows particle reduction percentages at end of a 4-hour visit and 1 hour later for six ventilation scenarios.

Notes

Infographic by Mark Nowlin for The Seattle Times, sourced from the Centers for Disease Control and Prevention, illustrating how various ventilation methods (no ventilation, open window, portable HEPA air filter, HVAC system) reduce airborne particles that may contain coronavirus. Data shows particle reduction percentages at end of a 4-hour visit and 1 hour later for six ventilation scenarios.

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