Improving Ventilation in Your Home
Small particles that people breathe out can contain virus particles, including the virus that causes COVID-19. If a guest visits your home, improving ventilation (air flow) can help prevent virus particles from accumulating in the air.
Improving ventilation can help you reduce virus particles in your home and keep COVID-19 from spreading. You may or may not know if someone in your home or if a visitor to your home has COVID-19 or other respiratory viruses.
Ventilate your home by getting fresh air into your home, filtering the air that is there, and improving air flow. Good ventilation, along with other preventive actions, can help prevent you and others from getting and spreading COVID-19 and other respiratory viruses.
Use CDC’s Interactive Home Ventilation Tool to learn how you can decrease the level of COVID-19 virus particles during and after a guest visits your home.
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