How do I know if my mask actually works? What about the ‘candle test’? – The Conversation AU

With mask wearing in public compulsory in Victoria and recommended in New South Wales, many Australians are buying, wearing or making face masks for the first time.
Reports of counterfeit or potentially substandard masks on the market may lead some people to question whether their surgical or cloth mask actually works.
So what can you look out for when buying a mask to make sure it does what its supposed to do?
And how can you test one youve bought or made?
What do I look for in a surgical …

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