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what hepa filter for coronavirus
Many filter customers have asked me whether air purifiers can help protect against infection and whether their HEPA filtering effectively traps particles of the virus that causes COVID-19.
In theory, the answer is yes, but by July 2020 it is unclear how much practical impact such a machine could have.
Back in April, researchers expressed concern that viruses could be transmitted through the air or in other ways. In early July, a significant number of experts argued in a letter to the WHO for the possibility of airborne transmission of the virus, and the US Centers for Disease Control and Prevention (CDC) began to recognize this possibility.
That’s a key reason HEPA purifiers must not be considered a first line of defense against the COVID-19 virus.
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