One for the ventilation experts. Advice from the NSW government, to business. The first highlight - many…

One for the ventilation experts. Advice from the NSW government, to business. The first highlight - many workplaces are not providing masks, and nearly always not appropriate masks when they are. Second highlight - hand washing and 1.5m better than masks?. #covid19aus @RealOzSAGE https://t.co/5XzOeYgiqa