The NSW health minister has hit out at people refusing to wear masks in indoor circumstances, saying if they "don't like the idea of a mask, stay home".
As of midnight Sunday, masks are mandatory in Greater Sydney, with the refusal to not wear a mask without an adequate excuse carrying with it a penalty of $2000.
Health Minister Brad Hazzard spruiked the need of masks and the benefits they serve as part of the "four layers in defence" against coronavirus.
"Of course, we added to that in addition to the hand hygiene aspects now masks. Now that is absolutely crucial," he said.
"Now we have four layers of defence that we're working with and we're asking the community across Greater Sydney to absolutely recognise that the use of masks is now mandatory in most situations".
Mr Hazzard issued a warning for people who refuse to wear the masks in indoor locations like supermarkets.
"If they don't like the idea of a mask, stay home or stay outside. You don't have to go into the shopping centres and put other people at danger," he said.
"The police, the government, don't want to be fining people $200 if we can avoid that, that's not what it's about."