Ventilation Is Key to Battling Covid. Here’s Why | WSJ

As the weather gets colder and people head indoors, the risk of catching Covid-19 is rising. WSJ explains why air ventilation and filtration are one of our biggest defenses against the coronavirus this winter. Illustration: Nick Collingwood/WSJ

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Видео Ventilation Is Key to Battling Covid. Here’s Why | WSJ канала Wall Street Journal