Cambridge hospital’s mask upgrade appears to eliminate Covid-19 risk to staff

Use of FFP3 respirators on coronavirus units at Addenbrooke’s ‘may have cut ward-based infection to zero’

An NHS hospital that upgraded the type of face masks used by staff on Covid-19 wards recorded a dramatic fall of up to 100% in hospital-acquired coronavirus infections among those workers, research has indicated.

Addenbrooke’s hospital in Cambridge upgraded the masks from fluid resistant surgical masks (FRSMs) to filtering face piece 3 (FFP3) respirators, with the change made in late December in response to its own staff testing data.

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Coronavirus | The Guardian

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