![Dr. Theresa Tam on Twitter: "3/4 Improving indoor ventilation also helps by reducing levels of infectious particles in the air, which is particularly important for times when we're in closed spaces with Dr. Theresa Tam on Twitter: "3/4 Improving indoor ventilation also helps by reducing levels of infectious particles in the air, which is particularly important for times when we're in closed spaces with](https://pbs.twimg.com/media/FIcb7kYXoAAgiHa.png)
Dr. Theresa Tam on Twitter: "3/4 Improving indoor ventilation also helps by reducing levels of infectious particles in the air, which is particularly important for times when we're in closed spaces with
![Throwing open the windows: The need for ventilation improvements as part of Covid-19 outbreak control in Aotearoa | PHCC Throwing open the windows: The need for ventilation improvements as part of Covid-19 outbreak control in Aotearoa | PHCC](https://blogs.otago.ac.nz/pubhealthexpert/files/2021/08/Figure-1-Ventilation-blog.png)
Throwing open the windows: The need for ventilation improvements as part of Covid-19 outbreak control in Aotearoa | PHCC
Improve Ventilation Tool | kitchen, ventilation | Having visitors in your home this winter? While opening windows can improve ventilation in your home during the visit, it might be too cold to
![Indoor Ventilation Strategies to Reduce the Spread of COVID-19 at Home | Belfer Center for Science and International Affairs Indoor Ventilation Strategies to Reduce the Spread of COVID-19 at Home | Belfer Center for Science and International Affairs](https://www.belfercenter.org/sites/default/files/2021-04/graphic%204%20ventilation-4.png)
Indoor Ventilation Strategies to Reduce the Spread of COVID-19 at Home | Belfer Center for Science and International Affairs
![Indoor Ventilation Strategies to Reduce the Spread of COVID-19 at Home | Belfer Center for Science and International Affairs Indoor Ventilation Strategies to Reduce the Spread of COVID-19 at Home | Belfer Center for Science and International Affairs](https://www.belfercenter.org/sites/default/files/styles/large/public/2021-04/graphic%204%20ventilation-4.png?itok=hFBly_gH)
Indoor Ventilation Strategies to Reduce the Spread of COVID-19 at Home | Belfer Center for Science and International Affairs
![CDC on Twitter: "New @CDCMMWR looks at what K-12 schools are doing to improve ventilation to help reduce the spread of #COVID19. Most reported low-cost improvements like moving activities outside. Learn more: CDC on Twitter: "New @CDCMMWR looks at what K-12 schools are doing to improve ventilation to help reduce the spread of #COVID19. Most reported low-cost improvements like moving activities outside. Learn more:](https://pbs.twimg.com/media/FUv3JlSWYAMPlij.jpg)