Key takeaways:

Health experts recommend using air purifiers for illness prevention during cold and flu season because viruses like influenza and SARS-CoV-2 are carried in respiratory aerosols in the air.

Health experts advise operating your air purifier at a continuous, low speed to minimize the risk of illness. If someone is actively sick, prioritize high fan speed to rapidly remove aerosols.

Our exclusive lab data reveals that the Shark HP232 performed best at particle removal on a low fan setting, while the Coway Airmega 400S performed best at particle removal on a high fan setting.

Other important factors for illness prevention are an air purifier with a true HEPA filter and strategic placement of the unit in your home.

When people start to recognize symptoms of sickness d

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