I’ve had good-quality air purifiers in my office since last April, when it first became apparent that COVID-19 likely is transmitted through airborne particles. They are over-engineered, meaning that they filter the air faster and more than the CDC has recommended. I’m not an expert in air safety or air quality, but it felt like the right thing to do.

Now, researchers at the University of Cambridge in the UK have looked at whether portable air purifiers help, and their discovery was YES, they do.

“When a team of doctors, scientists and engineers at Addenbrooke’s Hospital and the University of Cambridge placed an air filtration machine in COVID-19 wards, they found that it removed almost all traces of airborne SARS-CoV-2.”

You can read more details here.  Their cookies policy is a bit confusing. What I did to read it myself was to read on a laptop screen so that I could just scroll without responding to their request for information.