Recently in Sydney it has not been uncommon to see people wearing surgical masks when out in public in an attempt to protect themselves from nuisance smoke in the bushfires, or in the last few weeks to limit potential exposure to aerosols from someone potentially infected with the Coronavirus ( Covid-19). ..

The efficiency of refilling operations can have a major impact on the cost-effectiveness of spraying as well as the lifespan of the spray machinery. ..

Face to face courses cancelled from 6 April to 30 June 2020  ..