Prognosis
Plexiglass Is Everywhere, With No Proof It Keeps Covid at Bay
- In some cases, dividers can block air flow, raising virus risk
- Bright spot: When plastic comes down, it’s easy to recycle
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Sales of plexiglass tripled to roughly $750 million in the U.S. after the pandemic hit, as offices, schools, restaurants and retail stores sought protection from the droplets that health authorities suspected were spreading the coronavirus.
There was just one hitch. Not a single study has shown that the clear plastic barriers actually control the virus, said Joseph Allen of the Harvard T.H. Chan School of Public Health.