PPE: Concern over poor quality KN95 face masks Date23 June 2020 Any suppliers of KN95 masks should stop doing so immediately and contact the HSI for advice Are you Legionella ready? Date05 June 2020 Risk of Legionella is particularly likely when water systems have been closed down for an extended period of time How we are approaching enforcement for Covid-19 Date02 June 2020 Our four-phase approach to regulating Covid-19