The smell of hazard reduction burn smoke in Sydney this week is an unwelcome reminder the bushfire season is almost upon us, and with it, the torment of having to breathe toxic air.
Even before the last of the 2019–20 Black Summer smoke dissipated, another deadly reminder of the importance of access to safe air arrived. COVID forced many of us to take a crash course in how to avoid respiratory viruses.
One of the most effective ways to reduce indoor COVID transmission is to open windows. Maximising outdoor air coming inside, known as the air exchange rate, is a good way to reduce transmission risk.
View full article at The Conversation
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