UK Government guidance for working safely in shops, ‘Ventilation into the building should be optimised to ensure a fresh air supply is provided to all areas of the facility and increased wherever possible’ ,updated 23 July 2020,
UK Government guidance for working safely in shops, ‘Ventilation into the building should be optimised to ensure a fresh air supply is provided to all areas of the facility and increased wherever possible’ ,updated 23 July 2020,