Long-Term Protection From Masks ‘Dubious’

Long-Term Protection From Masks ‘Dubious’
Australian Defence Force (ADF) personal wear a mask while working in Mallacoota on January 15, 2020, Australia. Luis Ascui/Getty Images
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A NSW parliamentary inquiry into air quality heard the effectiveness of P2 masks in protecting people from bushfire smoke over a long-term period is ‘dubious’.

Centre for Air Pollution, Energy and Health Research chief investigator Guy Marks says P2 face masks need to be tight-fitting and replaced regularly because they lose their effectiveness once moist.